After carrying out notable reforms at Clus Abbey, where he had been abbot since 1430, Dederoth was persuaded by Duke Otto of Brunswick in 1433 to undertake the reform of Bursfelde.
After effecting notable reforms at Clus Abbey, where he had been abbot since 1430, Dederoth was persuaded by Duke Otto of Brunswick in 1433 to undertake the reform of the extremely neglected and dilapidated Bursfelde Abbey after the previous abbot had resigned in despair.
In 1231, John of Dinklage and his son Bertram (an armored knight) backed Vechta, which was allied with Emperor Philip of Swabia in a dispute with Otto of Brunswick, who was allied with the Cloppenburg Count von Tecklenburg.
In 1158 the emperor gave the duchy to Guelf VI of Este; Henry VI invested Conrad of Urslingen with it, upon whose death in 1198 it was ceded to Pope Innocent III, but then was occupied by Otto of Brunswick in 1209, who made Dipold von Vohburg duke.
A new epoch of harmony was expected to begin between the Church and the Holy Roman Empire, as Pope Innocent III had just recognized Otto of Brunswick as Emperor Otto IV of the Holy Roman Empire.
After Philip's murder in 1208, he "said and sang" in support of Otto of Brunswick against the papal candidate Frederick of Hohenstaufen; and only when Otto's usefulness to Germany had been shattered by the Battle of Bouvines (1214) did he turn to the rising star of Frederick, now the sole representative of German majesty against pope and princes.
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He trained in the military arts by fighting under Otto of Brunswick against Charles of Durazzo, in 1382.