Gilbert de Umfraville inherited the Earldom while in his minority after his father's death in 1245. Gilbert fought on the English side during the first war of Scottish independence until his death in 1308. His heir, second son Robert, also fought on the side of the English and surrendered to King Robert de Brus during the Battle of Bannockburn in 1314. He was released by Robert and treated with the Scots for peace with England. He was ultimately disinherited of his titles. Robert's heir Gilbert continued attempting to recover the Earldom and supported Edward Balliol and other disinherited barons and lords in Scotland.