Ernest II, Duke of Swabia

[2] At first his mother Gisela assumed the position of regent; she later gave way to Ernest's uncle Poppo, Archbishop of Trier.

Both men also were potential claimants to the Kingdom of Burgundy once its childless ruler, Rudolph III, died.

[2] Gisela's mother was Gerberga, a sister of the king, and both Conrad and Ernest wished to become Rudolph's eventual successor.

In 1028, Conrad's son Henry was crowned king, and Ernest was offered his duchy if he would give up his vassal Werner of Kyburg.

[2] A few months later, both Ernest and Werner were killed while battling troops of Count Manegold in the Black Forest.