 In 1968 he took over running the dukedom's Inveraray Castle estate for his father.The Campbell family descends from Gillespic Cambel, who some nine centuries ago acquired lands in the barony of Lochow, Co Argyll, by marriage to his cousin Aife, daughter and heir of Paul an Sporran, Royal Treasurer and last of the Clan O'Duin, descended of Diarmid.From the 13th century the Lochow Campbells held the title of Mac Cailein Mhor, Chief of Clan Campbell.