John and Katherine had one son, also named John. Mowbray died in 1432, and his heir and namesake, although still a minor, inherited the dukedom. He was to have a relatively short career, although one which made him a significant player in the later Wars of the Roses. Katherine not only survived Mowbray but was to live until 1483, and she took three more husbands before her death, the last of whom, John Woodville, was young enough to be her grandson. Youth and early career John Mowbray was born in Calais in 1392. He was the younger of two sons to Thomas Mowbray, 1st Duke of Norfolk and his second wife Elizabeth Fitzalan. Thomas Mowbray had died in 1399, and in 1405 John Mowbray's elder brother—also named Thomas—rebelled against King Henry IV. The rebellion failed, Thomas was beheaded for treason, and John succeeded to his father's earldoms of Norfolk and Nottingham as 5th and 3rd earl respectively. Whilst still only about fifteen in 1407, he was made a ward of his great-aunt Joan, Countess of Hereford (who was also the king's mother-in-law). Since she did not live at court, but in Essex (at either the castles of Rochford or Pleshey) it is likely her wards lived with her there (she also had custody of Richard de Vere, heir to the earldom of Oxford). Joan received an annuity to pay for his upkeep which had increased from £100 to £300 by 1410, in which year he left her wardship and became a ward of the king in the royal household. At the same time, even though still a minor, Mowbray began gradually receiving some of his patrimonial estates back from the crown. Thirteen at the time of his brother's death, he was made a ward of the Earl of Westmorland in 1411, who paid £2,000 for John's custody and marriage. Westmorland was a major northern magnate who had by this time repeatedly supported King Henry against various rebellions in the region. On 12 January the following year, John married Neville's eldest daughter, Katherine. At this time he also received the return of his family's hereditary office of Earl Marshal, which had been granted to Westmorland in 1399 on the death of John's father. Historian Christine Carpenter has suggested that his restoration was part of Henry V's policy of reconciling the families that had rebelled against his father. Chris Given-Wilson has noted