Other Events and Attributes:
Notes:
Also known as Otho the Child; ancestor of the house of Burnswick-Luneburgh, first duke of Brunswick-Luneburg.
Family/Spouse: MATHILDA. died in 1261. [Group Sheet] [Family Chart]
William married Helen Of DENMARK between 1200 and 1202. Helen (daughter of Valdemar I King Of DENMARK and Sophia Of POLOTSK) died in 1233. [Group Sheet] [Family Chart]
Helen was the daughter of Waldemar I and sister of Waldemar II and Canute VI, kings of Denmark.