Henry the Proud (c. 1108 – 20 October 1139) was the Duke of Bavaria (Henry X, 1126–1139), Duke of Saxony (Henry II, 1137–1139), and Margrave of Tuscany (1137-1139). He was the son of Henry the Black, Duke of Bavaria, and Wulfhilde, daughter of Magnus Billung, Duke of Saxony, and thus a member of the Welf family, and, what was quite important, senior heir of the Billung family. His father and mother both died in 1126 (father became a monk shortly before his death), and as his elder brother...