Robert was guardian on four occasions, sometimes jointly, and latterly twice during the eleven years of the king's enforced absence as a prisoner in England after the Battle of Neville's Cross (1345–1357).
Roberto foi gardián en catro ocasións, ás veces acompañado e as dúas últimas só durante os once anos de prisión en Inglaterra trala Batalla de Neville's Cross (1345-1357).