Family: William of Winchester Duke of Brunswick-Lüneburg / Helen Valdemarsdottir of Denmark (F47506)
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Male
William of Winchester Duke of Brunswick-Lüneburg
Birth 11 Apr 1184 Winchester, England 
Death 13 Dec 1213 Burial Marriage Father Henry V The Lion Duke of Bavaria & Saxony | F40025 Group Sheet Mother Matilda (Princess of England) of Anjou | F40025 Group Sheet
Female
Helen Valdemarsdottir of Denmark
Birth Death 22 Nov 1233 Burial Father Valdemar I The Great King of Denmark | F47508 Group Sheet Mother Sophie of Polotzk | F47508 Group Sheet
Male
Otto I "Das Kind" of Brunswick-Lüneburgh
Birth 1204 Death 9 Jun 1252 Burial Spouse Matilda of Brandenburg | F47504 Marriage 1228