Catherine of Valois died on Jan 3, 1437. Catherine was crowned queen at Westminster Abbey in February 1421. Her only child with Henry, the future Henry VI, was born at Windsor Castle on December 6, 1421. Parliament passed a statute in the late 1420s restricting the remarriage of a queen dowager, but she formed a relationship with Owen Tudor, a Welsh squire in her household, whom she probably married secretly. Other records state that she did not die as a result of childbirth, but entered Bermondsey Abbey, possibly seeking a cure for an illness that had troubled her for some time. She drew up her last will and testament three days before her death. Meanwhile, Owen and Catherine's two older sons, Edmund and Jasper, went to live with Katherine de la Pole, Abbess of Barking, and sister of William de la Pole, 1st Duke of Suffolk. Sometime after 1442, the king (their half-brother) took a role in their upbringing. Owen, their father, was eventually released on £2000 bail, but was pardoned in November 1439. Owen was treated well afterwards and was a member of the king's household until the mid-1450s. He lived until 1461, when he was executed by the Yorkists following the Battle of Mortimer's Cross in Herefordshire. Their surviving sons were given earldoms by Catherine's son King Henry VI. Edmund married Margaret Beaufort, a descendant of John of Gaunt who had consequently a distant but disputed claim to the throne; following the elimination by war of most other candidates, their son became King Henry VII.