Tags: Noble.
Wulfhilde Billung of Saxony (1072 – 29 December 1126 in Weingarten Abbey) was the eldest daughter of Magnus Duke of Saxony and his wife Sophia of Hungary.She married Duke Henry IX of Bavaria. As a result of this marriage part of the Billung possessions came into the hands of the House of Guelph. They had the following children: Henry X Conrad (died: 17 March 1126 in Bari buried in Molfetta) a Cistercian monk Sophia Judith Matilda (d. 1138) married Margrave Diephold IV of Vohburg (d.