Isabella of Scotland, Countess of Norfolk ladies were sometimes allowed to ride out under the strictest guard. Upon Isabella's release, she was required to marry English noble Roger Bigod, 4th Earl of Norfolk. All of the sisters married English nobility whilst Alexander was required to marry Princess Joan, daughter of King John. Roger was roughly fourteen years Isabella's junior. Henry III of England granted her property when she married Roger in May 1225. Roger became a ward of his new brother-in-law King Alexander; he held the position until 1228. Isabella was second-in-line to the Scottish throne (after her sister Margaret) until 1227 when Margaret's daughter and
Isabella, Countess of Lennox Albany, who was the second son of King Robert II by his first wife Elizabeth Mure of Rowallan, and who was to a certain extent the "de facto" ruler of Scotland, at points during the reigns of his father and elder brother. In 1392, Duncan agreed to marry Isabella to Robert's son, Murdoch Stewart. Murdoch and Isabella did marry, and had at least five children: Disaster struck Isabella's family when her husband, father, and sons Walter and Alasdair were tried for treason after her other son, James the Fat, raised a rebellion against the king, marched on Dumbarton, burned it,