Sir Stuft was a descendant of Sir Quackly McDuck. He was born in Scotland in 1110, and later became the leader of The Clan McDuck. He was a very successful leader, and the clan became richer under his leadership. In 1159 he had a newborn son, Sir Roast McDuck. Sir Stuft died on 1175 and was succeeded by his son. He was buried in the family cemetery and his armor was placed in a hallway of Dismail Downs, the clan's main castle.