Henry I, Count of Berg

Henry I, Count of Berg was a Bavarian nobleman who ruled Berg Castle in Ehingen, Bavaria. His parents were Poppo, Count of Berg, and his wife Sophia, who is sometimes claimed to be a Princess of Hungary – an otherwise unattested daughter of Solomon, King of Hungary and Judith of Swabia, but this is highly unlikely for chronological reasons. The historian Christoph Friedrich von Stälin theorised that their great political power despite humble origins was due to kinship with Bishop St. Otto of Bamberg, who was also Judith's chaplain after her marriage to Władysław I, Duke of Poland, with whom she had a daughter Adelaide, who married Henry's brother-in-law Diepold III, Margrave of Vohburg and gave birth to Adelaide of Vohburg, the first wife of Frederick Barbarossa.