William I (Prince of Caledon)
|Sovereign Prince: William I|
|Sovereign Prince of||Principality of Caledon|
|Preceeded by||Bruce III|
|Succeeded by||Simon II|
Eldest son of Prince Bruce III and Catherine Moore.
Acceding to the throne at his father's retirement, William ruled for five years before resigning after a crippling head injury suffered during a ceremonial swordfight at Clan MacArthur's clan games.
He had two daughters (by his second wife, Ann Ferris, Dutchess of Loughnaneshire), and no sons.