Maud Bruce sister of Robert I of Scotland (1287–1323) Parents Marjorie, Countess of Carrick Robert de Brus, 6th Lord of Annandale Children John Ross Uilleam III, Earl of Ross Matilda de Ross Siblings Isabel Bruce Alexander de Brus Mary Bruce Robert I of Scotland Christina Bruce Thomas de Brus Nigel de Brus Edward Bruce Margaret Bruce Isabel de Bruce Elizabeth Bruce Partners Hugh, Earl of Ross