They first exercised Brandenburg's electoral privilege in 1257, when they voted for king Alfonso X of Castile. He was the great, great grandson of the first Margrave of Brandenburg Albert the Bear of the House of Ascania, ruler of the Northern March. He is mentioned as a witness in a deed issued by the Margrave in Spandau in 1257.[16]. The monastery was meant to provide central and administrative functions. After he had attended Sunday mass, he died in the presence of numerous Dominican monks. Age 51. In 1257, John I founded the town of Landsberg (now called Gorzów Wielkopolski as an alternative river crossing across the Warta, competing with the crossing in the Polish town of Santok, detracting from the considerable revenues Santok made from foreign trade (custom duties, fees from the market operation and storage fees), similar to the way Berlin had been founded to compete with Köpenick. Otto III then ruled alone, until his death, the following year. Barnim died in 1278 at Altdamm (near Stettin). He was a son of Otto III and his wife Beatrice of Bohemia. After the Ascanians defeated the Wettins in the Teltow War of 1245, the importance of Köpenick decreased, took an increasingly central position in the developing trading network.[12]. Otto IV, Margrave of Brandenburg-Stendal, nicknamed Otto with the arrow (– 27 November 1308 or 1309) was the Margrave of Brandenburg from the House of Ascania from 1266 until his death. After the dispute over the kingship between Conrad IV and Henry Raspe the brothers recognized William II of Holland as king in 1251. Son of Albrecht II, Markgraf von Brandenburg and Mathilde von der Nieder-Lausitz, of the house of Wettin The Margraviate of Brandenburg (Markgrafschaft Brandenburg) was a major principality of the Holy Roman Empire from 1157 to 1806 that played a pivotal role in the history of Germany and Central Europe. He is starts as the lord of Köln. Otto's brother, John died on 4 April 1266, Otto was succedded his brother as second-in-command, by orders of Conrad. When Otto hear the news of his archmarshal, Conrad wounded and escaped at the Battle of Straßburg on 1266. Otto I, Margrave of Brandenburg (b c1127, d 07.03.1184) m1. Margrave of Brandenburg Albert II inherited the Margraviate in 1205, after the death of his eldest brother Otto II . The guardianship was taken up by the children's first cousin once removed, Count Henry I of Anhalt, the older brother of Duke Albert I of Saxony, a cousin of Albert II. About. They lead their army to attempted took re-take Baden, leading a successful, but lost a lot of men up to 150,000 men. Plauer See, the scene of a battle against Magdeburg in 1229, In 1229, the Margraves of Brandenburg lost a battle against their former guardian, the archbishop of Magdeburg at the Plauer See, close to their residence in Brandenburg an der Havel. They escaped to the fortress at Spandau. According to Adriaan von Müller, the strategic importance of Cölln and Berlin, and the reason for the foundation was probably to form a counterweight to Köpenick, a secure trading hub held by the Wettin (dynasty)s with its own trade routes to the north and east. Albert III Margrave of Brandenburg-Salzwedel nickname was Albrecht III Markgraf von Brandenburg. The Holy Roman Empire had suffered a difficult time, when Simon de Montfort, 6th Earl of Leicester civil war with King Henry III of England. They acquired land east of the Oder and expanded their domain further east to the river Drawa and north to the river Persante. The central statue in group 5 was the double statue of John and Otto. When the Margraviate was divided, John I received Stendal and the Altmark, which was considered the "cradle" of Brandenburg, and would remain a part until 1806. A cleverly managed division and continued consensual policy prevented the Margraviate from falling apart. The Siegesallee was a grand boulevard commissioned by Emperor Wilhelm II in 1895 with statues illustrating the history of Brandenburg and Prussia. read more. [25] Upper Lusatia came to Brandenburg via this marriage. Frederick was unsuccessfully going to take Frankfurt, but stopped midway with Otto and John interprets him; which forced Frederick to end the siege, and Frederick first defeated in a battle. The fact that the two young men are depicted as mature men was seen by Koser as legitimized by the right of artistic freedom. Notable ancestors includeCharlemagne (747-814), Alfred the Great … [6] According to Lutz Partenheimer: [around 1250], the Ascanians had pushed back their competitors from Magdeburg, Wettin, Mecklenburg, Pomerania, Poland and the smaller competitors on all fronts. Otto IV was born as the son of Johann I of Brandenburg and Sophia of Denmark. In 1249, they acquired the Lubusz Land and reached the river Oder. The Saxon attack presented an opportunity for Count Palatine Henry V to get involved. During the first third of the 13th century German settlers were recruited by Duke Leszek I the White to settle the Neumark. The Johannine line died out only three years later, with the death of Henry the Child in 1320, ending Ascanian rule in Brandenburg. The Silesians Piasts dukes, magnates and lords was given castles, such as Wien Castle, Goslar Castle and Brandenburg an der Havel of Brandenburg. With his health failing, the Imperial government had offer him to retire his military service with the request of Conrad. Otto I, Margrave of Meissen Last updated September 21, 2020. he was also impressed by the consensus which characterised their joint rule, as presented in the Chronicle of 1280. Albrecht Prince Of's father was Otto V "Der Lange" Margrave Of BRANDENBURG and his mother was Jutte Countess Of HENNEBERG. According to the Chronica Marchionum Brandenburgensium of 1280, Berlin and other places were built (exstruxerunt) by John I and Otto III. [23] Their successors as Margraves of Brandenburg, Otto IV "with the Arrow", Waldemar "the Great" and Henry II "the Child" all stem from the Johannine line. 7 Otto V, Margrave of Brandenburg-Salzwedel + Judith of Henneberg. They also expanded Frankfurt an der Oder and John I awarded it city status in 1253. This treaty is considered the birth of the Uckermark as a part of Brandenburg.[5]. John I was about twelve years old at the time, and Otto III was ten. For example, Grand Duke Constantine Pavlovich of Russia, Pages using infobox royalty with unknown parameters, Articles containing non-English language text, John III, Margrave of Brandenburg-Salzwedel, Otto V, Margrave of Brandenburg-Salzwedel, Albert III, Margrave of Brandenburg-Salzwedel, Otto VI, Margrave of Brandenburg-Salzwedel, https://historipediaofficial.wikia.org/wiki/Otto_III,_Margrave_of_Brandenburg?oldid=23116, Kunigunde (died , Matilda (d. 1316), married in 1266 to Duke. To stabilize their new possessions, the Margraves used the tried and tested Ascanian policy of founding monasteries and settlements. After John's death in 1266, his brother Otto III ruled Brandenburg alone. In 1290, nineteen Margraves of the two lines had gathered on a hill near Rathenow; in 1318 only two Margraves were left alive: Waldemar and Henry the Child. They founded several cities and developed the twin cities of Cölln and Berlin. von Brandenburg, Mechthild von der Lausitz, Elisabeth von Brandenburg, Johann I. von Brandenburg, ...nburg, Otto V. von Brandenburg, Mathilde von Brandenburg, Albrecht III. Duke Otto III the Pious is initially a vassal of Kaiser Conrad III from the Holy Roman Empire. Genealogy profile for Otto III, Markgraf von Brandenburg Otto von Brandenburg (1215 - 1267) - Genealogy Genealogy for Otto von Brandenburg (1215 - 1267) family tree on Geni, with over 200 million profiles of ancestors and living relatives. Henry Probus (later Henryk IV of Poland) of the Silesian Piasts allied with Charles IV to take the rebellions without the Boleslaw V's permission. 6 Otto III, Margrave of Brandenburg + Beatrice of Bohemia. He picked his successor Rudolf of Habsburg as second-in-command. After Otto's death in 1267, John's son, Otto IV, took over as the senior Margrave. For a long time the border between the territories of the Slavic tribes Hevelli and Sprewanen crossed straight through the area of today's Berlin. His wife, Beatrice of Bohemia, and his two older sons, John III and Otto V, brought his body to Strausberg, where he was buried in the choir of the Dominican church he had founded, according to his solemn last wishes[17], The joint rule of the Margraves ended in 1258 with a division of their territory. Between 1230 and 1245, Brandenburg acquired the remaining part of Barnim and the southern Uckermark up to the Welse river. Sculptor: Max Baumbach, unveiled in 1900. It dominated the Barnim and Teltow areas. His brother Otto III received Spandau, Salzwedel, Barnim, the Lubusz Land and Stargard. the small town of Cedynia (Zehden; today in the Polish Voivodeship of West Pomerania) was enfoeffed to the noble von Jagow family. They founded the Benedictine nunnery of St. Mary in 1239. The Margraves gave the Mirica, the Cölln Moor, with all usage rights to the citizens of Cölln. According to Uta Lehnert, the two eagles show characteristics of the Jugendstil. Bernhard III Margrave of Baden-Baden inherited in 1515 part of his fathers margraviate of Baden. He became Margrave of Brandenburg in 1266, governing together with some relatives. [4] However, John I and Otto III failed to produce the strategically important connection to the Baltic Sea. the text in this section is copied from an article in Wikipedia. [19] It appears that in 1266, John I arranged for the monastery to move and that he donated rich gifts to the new Chorin Abbey, including the village of Parstein. 1 reference. John I and his brother Otto III developed the territory of their margraviate and expanded market towns and castles, including Spandau, Cölln and Prenzlau into towns and centers of commerce. Until then, deceased Margraves of Brandenburg had been buried at Lehnin Abbey, in the Ottonian part of the Margraviate. Albert, and his descendants of the Ascanian House, then made considerable progress in Christianizing and Germanizing the lands. They had the following children: Siegesallee in Berlin with double statue for the Margraves John I and Otto III. [...] The dilluvial plateaus of Teltow and Barnim with their heavy and relatively fertile soils, were systematically settled and put under the plow during the reign of Margraves John I and Otto III. [27] On the right was a bust of Marsilius de Berlin, the first recorded mayor (Schultheiß) of Berlin. When Pribilav died in 1150, Spandau fell to Brandenburg under the terms of an inheritance treaty between Pribislav and Albert the Bear. [24] The last Ascanian in Brandenburg, the eleven-year-old Henry the Child, only played a minor rôle and was already at the mercy of the various houses trying to grab power in the upcoming power vacuum. He also received the Havelland and the Uckermark. The electors chose him new king of the HRE, also numbered Otto IV. He met his death here, a few months after his older brother John, who died in the second half of 1266. Since their reign had started in 1225, the period around 1230 is considered the founding period of Berlin. 7 Beatrice of Brandenburg + Bolko I the Strict. [20], As with all monasteries founded by the Ascanians, political and economic considerations played an important rôle, alongside the pastoral aspects. After the Ottonian line died out in 1317, John I's grandson Waldemar reunited the Margraviate. The reign of these two Ascanian Margraves was characterized by an expansion of the Margraviate, which annexed the remaining parts of Teltow and Barnim, the Uckermark, the Lordship of Stargard, the Lubusz Land and parts of the Neumark east of the Oder. 5 Otto III, Margrave of Brandenburg + Beatrice of Bohemia. Two adolescents would not have been able to adequately express the founding of a future world city, from the perspective of the late 19th century interpretation of history. west of the river) in Brandenburg an der Havel, on the spot where later the St. Pauli Monastery was built. St. Nicholas Church in Berlin, founded around 1220/1230, picture from 1740. This implies that the two Margraves did not actually found the cities of Cölln and Berlin, although they did play a decisive role in the early expansion of the cities. Emperor Frederick II managed to prevent a feud, urging them to keep the peace. From this base, they could expand further to the east. The historian Stefan Warnatsch has summarized this development and the attempts of the Ascanians to gain access to the Baltic Sea from the middle Oder and the Uckermark as follows: The great success of the territorial expansion in the 13th century was largely due to the great-grandsons of Albert the Bear [...]. [18], Chorin Abbey, founded by John I and Otto III, north side, 1854, The politics of marriage and 1258 consummated division of the state government led to the joint foundation of the monastery of Mariensee on a former island in the Parsteiner See lake on the northeastern edge of today's Barnim. A Slavic circular rampart existed on the island, to the west of the monastery. Albert the Bear was the first Ascanian Margrave of Brandenburg; he inherited the territory from its last Wendish ruler, Pribislav, in 1150. At stake was a Slavic castle at Köpenick, a former headquarters of the Sprewanen tribe, located at the confluence of the Spree and Dahme rivers, at the time, it was just east of Berlin; today it's part of the city. The connection of the Margraves with Berlin is also evidenced by their choice of Hermann von Langele as their confessor. According to the current state of research, no evidence has been found that a Slavic settlement existed in the area around the twin towns of Berlin and Cölln. Husband of Beatrix von Brandenburg In 1244, Otto III married Beatrix (Božena), a daughter of King Wenceslaus I of Bohemia. Later that year, the brothers initiated the construction of Stargard Castle, to secure the northernmost part of their territory. 1298 August 23, 1298. Fehrbellin, BB, Germany. Markgraf Otto III. They expanded the Ascanian castle in nearby Spandau and made it their preferred residence. von Brandenburg, Albert Ii van Brandenburg, Matilda van Lausitz, Matilda van Brandenburg, Johan i van Brandenburg, ...ndenburg, Johan III van Brandenburg, Otto V van Brandenburg, Albrecht III van Brandenburg, Otto Vi van Brandenburg, Mathilde van Brandenburg, 1215 - Brandenburg, Aachen, Nordrhein-Westfalen, Germany, Oct 9 1267 - Strausberg, Markisch-Oderland, Brandenburg, Germany, Albrecht Ii von Brandenburg, Matilda von Groitzsch, Elizabeth von Brandenburg, Johann i von Brandenburg, ...hilde von Brandenburg, Otto von Brandenburg-Salzwedel, Johann von Prague, Albrecht von Brandenburg-Salzwedel, Otto von Brandenburg-Salzwedel, Albrecht Ii von Brandenburg, Mathilde von Meißen, Albrecht Ii van Brandenburg, Mechthild van de Lausitz, Mechtildis van Brandenburg, Johan i van Brandenburg. He married Judith of Poland (c1132-c1173) 6 January 1148 JL in Kruszwica. Towards the end of the 12th century, the Ascanians moved the fortress about a kilometer to the North, to the location of today's Spandau Citadel, probably because of a rising ground water table. The monastery of Mariensee was meant to provide the Johannine line with a burial place of their own. They consolidated the position of Brandenburg within the Holy Roman Empire, which was reflected in the fact that in 1235, Otto III was a candidate to be elected King of the Germans. Before their death, they divided the Margraviate in a Johannine and an Ottonian part. Bernhard III Margrave of Baden-Baden was 61 years old when bernhard III Margrave of Baden-Baden died. After Matilda died in 1225, the brothers ruled the Margraviate of Brandenburg jointly. [29], Monument to Otto III (standing) and his brother John I in the, Chorin Abbey - Grave laying and power politics, Double statue of the brothers at the Siegesallee, According to Stich, the deed from 1298 in which Margrave, Sources do not entirely agree on who received what. Their cooperation with the Polish count provided border security against Pomerania and prepared the economy of the area for integration into the Neumark. 6 Otto V, Margrave of Brandenburg-Salzwedel + Judith of Henneberg. On spring of 1267, Otto retired from imperial army. Margrave Otto V of Brandenburg-Salzwedel (c. 1246 – 1298), nicknamed Otto the Tall, was a son of Margrave Otto III and co-ruler of Brandenburg with his cousin, Margrave Otto IV. Media in category "Otto III, Margrave of Brandenburg" This category contains only the following file. Albert III Margrave of Brandenburg-Salzwedel was a Margrave of Brandenburg. The Ascanians were traditionally buried in the Lehnin Abbey in the Ottonian part of the country. 8 Beatrice of Brandenburg + Bolko I the Strict. instance of. No, bernhard III Margrave of Baden-Baden died on 06/29/1536, 484 years ago. Although the traditional Ascanian grave site at Lehnin Abbey was situated in his half of the Margraviate, he preferred to be buried in the church of the Dominican monastery in Strausberg he had founded in 1252. Brandenburg did not acquire Köpenick until 1245. for whom he had a special fondness. 8 Beatrice of Silesia + Louis IV, Holy Roman Emperor. Otto III; 1220–1266; 1220-1267; Co-rulers, sons of Albert II. Otto III, Margrave of Brandenburg (Q672163) From Wikidata. The broad ford across two or even three river arms away could best be protected by fortified settlements on both river banks. Between 1232 and 1266, seventeen stays at Spandau have been documented, more than at any other town. Like their former opponents and defenders, they appeared at the Diet of Mainz in 1235, where the Public Peace of Mainz was proclaimed. [7] Other settlement in the area, such as Spandau and Köpenick, date back to the Slavic period (from about 720) and these naturally had a greater strategic and political importance than the young merchant towns Cölln and Berlin. This Hermann von Langele was the first known member of the Franciscan convent at Berlin. Otto was the younger son of Albert II of the Brandenburg line of the House of Ascania and Mechthild (Matilda) of Lusatia, daughter of Count Conrad II of Lusatia, a junior line of the House of Wettin. Otto III, nicknamed the pious (1215 – 9 October 1267 in Brandenburg an der Havel) was Margrave of Brandenburg jointly with his elder brother John I until John died in 1266. 100 0 _ ‎‡a Otto ‏ ‎‡b III. By the 1230s, the Margraves of Brandenburg had definitely gained the heritable post of Imperial Chamberlain and the indisputable right to vote in the election of the King of the Germans.[4]. When in 1264, Duke Wartislaw III died, Barnim I the Good became the sole ruler of the duchy. Öl auf Leinwand. The left side figure is the priest Simeon from Cölln, the figure on the right is Marsilius de Berlin. Son of Otto III, Markgraf von Brandenburg and Beatrix Božena Česk ... Margrave of Brandenburg-Salzwedel. After a few weeks, Frederick III, Duke of Lorraine declared war and claim to the Imperial throne from Charles IV, Holy Roman Emperor; resulting a civil war--known as the Duke's War of 1264 (1264–68). His sons later confirmed these donations for the benefit of their father's soul and their own. Between 1895 and 1901, 27 sculptors led by Reinhold Begas created 32 statues of Prussian and Brandenburg rulers, each 2.75  high. Double statue of the brothers at the Siegesallee Siegesallee in Berlin with double statue for the Margraves John I and Otto III. Otto V, called the Tall / Long (der Lange) was born around 1246,the second son of Otto III and Beatrice, the daughter of Wenceslaus I of Bohemia. Recent archaeological research has uncovered evidence of late 12th century market towns in both Cölln and Berlin. Ninety graves were excavated in the St. Nicholas Church, the oldest building in Berlin, with foundations dated 1220-1230 and some of these graves could also be from the late 12th century. edit. 35,5 x 27 cm. The preparations for the reorganization may have begun in 1250, when the Uckermark was acquired, but no later than 1255, when John I married Jutta (Brigitte), the daughter of Duke Albert I of Saxony-Wittenberg. Even before Mariensee was completed in 1273, a decision was made to move to a new location approximately five miles to the southwest with the new name Chorin Abbey. In 1266, they changed their mind and founded a second monastery, named Chorin, 8 km southwest of Mariensee. Is Bernhard III Margrave of Baden-Baden still alive? [22] The most important factors in this division were revenue and the number of vassals; geographical factors played only a subordinate rôle. von Brandenburg by Georg Sello ( ) Most widely held works by Otto Otto III., Johannes II., Markgrafen v. His paternal grandparents were Otto III Margrave Of BRANDENBURG and Bozena Princess Of BOHEMIA; his maternal grandparents were Hermann I Count Of HENNEBERG and Margaretha Countess Of HOLLAND. Geni requires JavaScript! The choice of the secular and ecclesiastical leaders of Berlin and Cölln as flanking characters for John and Otto underscores the pivotal rôle the city of Berlin played in the lives of the Margraves in the opinion of Reinhold Koser, the historian who did the research for the Siegesallee. imported from Wikimedia project. In 1258, they founded a Cistercian monastery named Mariensee, where members of the Johannine line could be buried. Meanwhile the Imperial army re-take München on August 1264; while Frederick also took Leipzig, Mariendorf and Koln. Otto III then ruled alone, until his death, the following year. The younger Otto III stand beside him, pointing to the deed with one hand, while his other arm rests on a spear. In 1221, their mother, Countess Matilda, purchased the regency from the Archbishop of Magdeburg for 1900 silver Marks and then ruled jointly with Hernry I. Otto I von Brandenburg, Markgraf von Brandenburg, was born circa1127 to Albrecht von Brandenburg (c1100-1170) and Sophie von Winzenburg (c1105-1160) and died 8 July 1184 inStendal of unspecified causes. [14], Among the privileges granted to the two cities by the Margraves were Brandenburg Law (including absence of tolls, free exercise of trade and commerce, hereditary property rights) and in particular the staple right,[15] which gave Cölln and Berlin an economic advantage of Spandau and Köpenick. On the left was a bust of provost Simeon of Cölln, who was a witness, on 28 October 1237, together with bishop Gernand of Brandenburg, of the oldest deed in which Cölln is mentioned. Please enable JavaScript in your browser's settings to use this part of Geni. Albrecht Ii van Brandenburg (Markgraaf van Brandenburg 1205-1220), Elisabeth van Brandenburg, Mechtildis van Brandenburg. [1] The Archbishop of Magdeburg then traveled to Italy, to visit Emperor Frederick II and Duke Albert I of Saxony attempted to grab power in Brandenburg, causing a rift with his brother Henry I. On 1 September 1265, Prince Conrad (future Conrad III) took the command and named Archmarshal of the Imperial Army. Henry and the Silesians Piasts pay homage to Charles IV which the Emperor accepted. Albert II, Margrave of Brandenburg (born: – died: 25 February 1220) was a member of the House of Ascania.He was Margrave of Brandenburg from 1205 until his death in 1220. Statements. Otto III margrave of Brandenburg 1220-1267 (co-ruler) X 1244 Beatrix of Bohemia 1225-1290 : his grave in the Kloster, Strausberg.?? According to Winfried Schich, we can assume the Berlin and Cölln owe their development as urban settlements to the structural changes in this area due to the expansion during the High Middle Ages, which led both to a denser population and a reorganization of long-distance trade routes. Although Alfonso was not elected, the fact that they were able to vote illustrates the growing importance of Brandenburg, which had been founded only a century earlier, in 1157, by Albert the Bear. See more » Otto IV, Margrave of Brandenburg-Stendal. The design of their reign reached much further spatially and conceptually then that of their predecessors. 9 Beatrice of Silesia + Louis IV, Holy Roman Emperor. von Brandenburg, Kunigunde von Brandenburg, Otto Vi. [11] The ford across the largely swampy Berlin Glacial Valley gained importance during the Slavic-German transition period, when John I and Otto III settled the sparsely populated plateaus of Teltow and Barnim with local Slavs and German immigrants. New!! According to Koser, the sculptor Max Baumbach was responsible for the decision to make the founding of Berlin the central theme of the double statue, rather than the expansion or the founding of the monastery. With the death of John V In 1317, the last grandson of Otto III, the Ottonian line died out. : During his reign, Brandenburg acquired Lower Lausitz / Lusatia. Jump to navigation Jump to search. He is based on Otto III, Margrave of Brandenburg, who ruled Brandenburg jointly with his brother John until John died in 1266, to until his death. Death of Otto V, Markgraf von Brandenburg at Lehnin. The presence of an Ascanian fortress on this site in 1197 has been established. In 1229, there was a feud with former regent Archbishop Albert, which ended peacefully. Frederick took the capital of Nuremberg in the 1264 first siege, but lost few months later to the pro-monarchy. After the death of Count Henry of Brunswick-Lüneburg in 1227, the brothers supported his nephew, their brother-in-law Otto the Child, who was only able to prevail against Hohenstaufen claims and its vassals by force of arms. [2][3], Deed of John I, raising Frankfurt an der Oder (Vrankenvorde) to city status in 1253. See more ideas about duchess, margrave, getty museum. The 46-year old Otto become Conrad's personal advisor, which Conrad's accepted as his brother, John become Conrad's second-in-command. ...tto V 'De Lange' van Brandenburg, Mathilda van Brandenburg, Albrecht III van Brandenburg, Otto VI 'De Korte' van Brandenburg, Cunigonde v... 1215 - Brandenburg An Der Havel, Brandenburg, Sachsen, Deutschland, Oct 9 1267 - Brandenburg An Der Havel, Brandenburg, Sachsen, Deutschland, Albrecht Ii Otto von Brandenburg, Mathilde Konrad von Niederlausitz, Beatrix von Böhmen, Johann Iii. [8], Albert the Bear probably expanded the fortress island at Spandau eastwards before or shortly after his victory against a certain Jaxa (this was probably Jaxa of Köpenick) in 1157. The outstretched arms and bowed head suggest the brothers' protection and promotion of the twin cities. He was the great, great grandson of the first Margrave of Brandenburg Albert the Bear of the House of Ascania, ruler of the Northern March. In 1266 he married Mechthild, the daughter of Otto III, Margrave of Brandenburg. Otto III, nicknamed the pious (1215 – 9 October 1267 in Brandenburg an der Havel) was Margrave of Brandenburg jointly with his elder brother John I until John died in 1266. Notable ancestors includeCharlemagne (747-814), Alfred the Great (849-899), Hugh Capet (c940-996). In 1273, his body was moved to Chorin Abbey. The Nonnendammallee, one of the oldest streets in Berlin and as Nonnendamm part of a trade route as early as the 13th century, is still a reminder of the former nunnery[10]. This makes the alliance between the Plantagenet Holy Roman Emperors and Silesians Piasts. Since both Otto and his two-year older brother John I were minors when their father died in 1220, Emperor Frederick II transferred the regency to Archbishop Albert I of Magdeburg. The Ottonian line died out in 1317 with the death of Margrave John V in Spandau, so that Brandenburg was reunited under Waldemar the Great. From 1266 to 1319 the four sons of John I (John II, Conrad, Otto IV, and Henry) and the four descendants of Otto III (John III, Otto V, Otto VI, and Albert III) shared the title of “Margrave of Brandenburg” and ruled jointly. Koser regarded the founding and development of the city as the Margrave's most important policy, more so than the expansion the principality and the founding of the monastery. The development of the Berlin area is closely related to the other policies of the two Margraves. John I, Margrave of Brandenburg (– 4 April 1266) was from 1220 until his death Margrave of Brandenburg, jointly with his brother Otto III "the Pious". From 1266 to 1319, Brandenburg was held by the two lines of Brandenburg-Stendal and Brandenburg-Salzwedel, all of whom jointly shared the title of Margrave. Around 1130, Spandau was an eastern outpost of the Hevelli under Pribislav. The other half, like Otto and John supported the monarch. The two founding cities of Berlin (Cölln and Berlin) were founded relatively late. Meanwhile, almost 40 percent switch sides and supported the claimant which is who hates the monarch. 9 Matilda of Bavaria, Margravine of Meissen Margrave of Brandenburg. They were knighted on 11 May 1231 in Brandenburg an der Havel and this is generally taken as the beginning of their reign. John I (sitting) and Otto III studying the (alleged) city charter of Berlin and Cölln (now in the Spandau Citadel). The duchy then was dispensed to the sons of Barnim I, Otto I and Bogislaw IV. Brother of Elisabeth von Brandenburg; Mathilde von Braunschweig; Markgraf Johann von Brandenburg, I; Judith (Jutta) von Brandenburg, von Brandenburg and Constance von Wettin, https://en.wikipedia.org/wiki/Otto_III,_Margrave_of_Brandenburg, http://www.friesian.com/germany.htm#saxony.