Sir Eider, whose statue stands in front of the rebuilt Castle McDuck, is the earliest member of the Clan to be mentioned in the series, and he was killed defending the Castle from Ango-Saxons - he was deserted by his serfs who thought he too cheap.
His ghost also appeared alongside other deceased McDucks in "The Secret(s) of Castle McDuck!".
Behind the scenes
- Sir Eider was created by Carl Barks for his 1948 comic story "The Old Castle's Secret".