William Courtenay, 1st Earl of Devon full titles and lands of the earldom on 10 May 1511, after jousting in a tournament with the king and his cousin Sir Thomas Knyvett and Sir William Nevill. He married Catherine of York the sixth daughter of King Edward IV by Elizabeth Woodville. William and Catherine had three children: An effigy identified by tradition as "little choke-a-bone", Margaret Courtenay (d.1512), an infant daughter of William Courtenay, 1st Earl of Devon (1475–1511) by his wife Princess Catherine of York (d.1527), the sixth daughter of King Edward IV (1461–1483) exists in Colyton Church in Devon. The effigy is only about 3
Elizabeth Stafford, Countess of Sussex is unknown, and a younger son, Sir John Radcliffe (1539 – 9 November 1568). Robert Radcliffe, 1st Earl of Sussex, died 27 November 1542. His widow, Mary, subsequently married, in 1545, as his second wife, Henry FitzAlan, Earl of Arundel (died 24 February 1580). Elizabeth Stafford, Countess of Sussex Elizabeth Stafford (c. 1479 – 11 May 1532) was an English noblewoman. Elizabeth Stafford was the daughter of Henry Stafford, 2nd Duke of Buckingham, and Lady Katherine Woodville, the daughter of Richard Woodville, 1st Earl Rivers, by Jacquetta of Luxembourg, daughter of Pierre de Luxembourg, Count of St. Pol, and was