About Ondur Visbursson
Ondur Visbursson, son of Visbur Vanlandeson, is mentioned in Ynglingesoga, section 14, as a son of Visbur by his first wife, who was a daughter of Aude the rich.
He and his brother followed his mother when his father sent her away to take another wife; they eventually killed their father.
Visbur married the daughter of Aude the Rich. They had two sons, Gisle and Ond; but Visbur left her and took another wife, whereupon she went home to her father with her two sons. Visbur had a son who was called Domald, and his stepmother used witchcraft to give him ill-luck. Now, when Visbur's sons were the one twelve and the other thirteen years of age, they went to their father's place, and desired to have their mother's dower; but he would not deliver it to them. Then they said that the gold ornament should be the death of the best man in all his race, and they returned home. Then they began again with enchantments and witchcraft, to try if they could destroy their father. The sorceress Huld said that by witchcraft she could bring it about by this means, that a murderer of his own kin should never be wanting in the Yngling race; and they agreed to have it so. Thereafter they collected men, came unexpectedly in the night on Visbur, and burned him in his house.