Otto van Holland (died 27 March 1249)Journal of Open Humanities website, Representing Persons and Objects in Complex Historical Events using the Event Model F, by Gerard Kuys and Ansgar Scherp was a bishop of Utrecht from 1233 to 1249.Kastelen en buitenplaatsen in Utrecht website, Lijst van Utrechtse Bisschoppen

Otto was the second son of William I, Count of Holland and his first wife Adelaide of Guelders. He was elected as bishop in 1233, but because of resistance from the canons of Utrecht, his consecration was delayed until 1245. He emerged as a forceful ruler who involved himself primarily in secular affairs.Deutsche Biographie website, Otto III After the death of his brother Floris IV, Count of Holland in 1234, he became guardian of Floris' son William II, Count of Holland, and he governed the County of Holland. He resolved the problems in Drenthe, problems which had cost his predecessor Otto II of Lippe his life. He also subjected the lords of Goor to his authority.

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