Otto (V.) (Brandenburg)

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The Ascanian Otto (V.) von Brandenburg (* around 1246, † 1298 ), called "the Tall One " , was a son of Otto III. and after the early death of his older brother Johann III, head of the Ottonian line of Brandenburg. He was one of the six main co-regents of the Mark Brandenburg from 1267.


Otto lived for many years at the court of the Přemyslid Ottokar II in Prague, whose nephew Otto was.

On the eve of the outbreak of war against the Roman-German King Rudolf I, Ottokar appointed him guardian of his son, Crown Prince Wenceslaus II. When Ottokar died on the battlefield in 1278, this son was only seven years old. Otto the Long ruled as Wenceslas' guardian for five years as imperial administrator in Bohemia . He kept the heir to the throne under strict control and brought him out of the country to Brandenburg , where he had him under control, because of conflicts with the king's widow Kunigunde von Halitsch and parts of the Bohemian nobility, especially Bishop Tobias of Prague . Before he finally let Wenzel come to power, he forced the young king to surrender his claims to Upper Lusatia.

At Christmas 1249, with Duke Mestwin II, the ruling princely family in Pomerania died out in the male line. Brandenburg had an imperial privilege to succession in Pomerania, to which the Duchy of Pomerania belonged according to the legal conception of Brandenburg. The last time the right was confirmed in December 1231 by Emperor Friedrich II. Furthermore, the late Duke submitted to Brandenburg twice in the past and took the feudal oath, but then switched to the Piasts of the Greater Poland line after having achieved his respective goals. From these conflicting claims, a protracted war of succession broke out after the Duke's death with the Duchy of Greater Poland under Duke Przemysł II. Otto V, who, despite repeated rivalries with the older Brandenburg margrave line of his cousins, tried to uphold the claims of the march together with them , was in contact with the Polish aristocratic opposition, with whose help Przemysł II, who was crowned king in the summer of 1295, was supposed to be kidnapped and deported to Brandenburg. At the beginning of February 1296 the kidnapping failed in the early morning hours. The king was seriously injured during a fight that broke out and succumbed to his injuries while trying to get him to Neumark in Brandenburg.


Otto's first wife was Katharina , a daughter of Duke Przemysł I of Greater Poland . His second wife was Judith von Henneberg-Coburg , the daughter of Count Hermann I von Henneberg . He had an administrator, Count Wolfgang von Barby , administer their extensive dowry, the “New Rulership” of the County of Henneberg , from which the Coburg Care Department arose. From this marriage came his son and successor Hermann "the Long" (* around 1275; † February 1, 1308 near Lübz), who married Anna von Habsburg (1280–1327) in 1295, daughter of the later Roman-German King Albrecht I. Two older sons died before their father did.