Katherine Neville or Catherine de Neville (c. 1397 – c. 1483) was the eldest daughter of Ralph Neville, 1st Earl of Westmorland (1364?-1425) and Joan Beaufort (c. 1379-1440), daughter of John of Gaunt, Duke of Lancaster by his mistress (later, 3rd wife) Catherine de Roet. Katherine was married firstly to John Mowbray, 2nd Duke of Norfolk (1392-1432). Their only known child was John de Mowbray, 3rd Duke of Norfolk (1415-1461). Katherine married secondly, Thomas Strangeways (c. 1395-before 1442) - they had 2 daughters. She married 3rdly John, Viscount Beaumont, who was killed in 1460. Her fourth and last marriage was infamous, and known by contemporaries as the 'diabolical marriage' - she married John Woodville, brother of Elizabeth Woodville, Edward IV's queen. He would have been barely twenty at the time of their marriage - she in her mid to late sixties. Yet she survived even him as he was executed in 1469 during the brief period of time that her nephew - Richard, Earl of Warwick (The 'Kingmaker') had usurped the authority of the crown. She was still alive in 1483, having survived all the descendents of her first marriage.1
