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 of Navarre, Countess of Armagnac (successor of their father), and Beatrice. Isabella was firstly betrothed to Infante John of Aragon around 1414. Her mother, Queen Eleanor bequeathed her money for the marriage. John later became King of Aragon but broke off his contract with Isabella, in hopes of marrying Joanna II of Naples. Isabella eventually married on 10 May 1419 John IV of Armagnac. This marriage was John's second marriage, after the death of his first wife Blanche of Brittany, who had left no sons. Isabella and John had five children: Isabella and her husband both died in 1450; she died in August and he