 1012 with the Babenberg scion Ernest, who had been enfeoffed with the Duchy of Swabia by King Henry II of Germany at the death of Gisela's brother, Duke Herman III and aimed at legitimising himself as his heir.After Ernest's early death in 1015, Gisela became regent for their minor son Duke Ernest II of Swabia.Gisela's third marriage, which took place before January 1017, was to Conrad II, who was elected king of Germany in 1024 and became emperor of the Holy Roman Empire in 1027.