Robert de Brus, 6th Lord of Annandale 6th Lord of Annandale (1243-1304) (1243–1304) Parents Isabella of Gloucester and Hertford Robert de Brus, 5th Lord of Annandale Children Robert I of Scotland Christina Bruce Maud Bruce Isabel Bruce Isabel de Bruce Thomas de Brus Alexander de Brus Elizabeth Bruce Margaret Bruce Nigel de Brus Mary Bruce Edward Bruce Siblings John de Brus William de Brus Euphemia Bruce Isabel de Bruce Richard de Brus Partners Marjorie, Countess of Carrick Eleanor Maud FitzAlan