Henry the Proud

Henry the Proud (German: Heinrich der Stolze) (c. 1108 – 20 October 1139), a member of the House of Welf, was Duke of Bavaria (as Henry X) from 1126 to 1138 and Duke of Saxony (as Henry II) as well as Margrave of Tuscany and Duke of Spoleto from 1137 until his death. In 1138 he was a candidate for the election as King of the Romans but was defeated by Conrad of Hohenstaufen.

Source: Wikipedia — https://en.wikipedia.org/wiki/Henry_the_Proud