Isobel of Huntingdon Wife of Robert de Brus, 4th Lord of Annandale (1199–1251) Parents Matilda of Chester, Countess of Huntingdon David of Scotland Children Robert de Brus, 5th Lord of Annandale Bernard Bruce, Lord of Connington and Exton Beatrice de Brewes Siblings John of Scotland, Earl of Huntingdon Margaret of Huntingdon, Lady of Galloway Robert of Huntingdon Matilda of Huntingdon Henry of Huntingdon Ada de Huntingdon David (?) Henry of Brechin unknown daughter (?) Henry of Stirling Marjorie of Scotland Ada (?) Partners Robert de Brus, 4th Lord of Annandale