Lincoln's Inn on 12 May 1490. In 1508, he was coheir to his uncle, Edmund de Ros, 10th Baron de Ros. In 1492, it had been determined that Edmund de Ros was unable to administer his own affairs, and he was placed in the custody of his brother-in-law, Sir Thomas Lovell, husband of Manners' aunt, Isabel Lovell. Edmund de Ros died on 23 October 1508, and was buried in the parish church at Elsing in Enfield, Middlesex. In about 1509, Manners was the sole heir to his aunt, Isabel Lovell. Manners was with Thomas Howard, then Earl of Surrey, in the Scottish campaign of 1497, and was knighted by him on or before 30 September of that year. He was in attendance in 1500 when King Henry VII met Archduke Philip near Calais. In November 1501, he was among those who received Catherine of Aragon at St. George's Field. He was nominated to the Order of the Garter on 27 April 1510, although not elected. In 1513, Manners campaigned in France. He was a commander at the siege of Thérouanne, and was present at the siege of Tournai. He fell ill about the time Tournai surrendered on 23 September 1513. Manners died on 27 October 1513, either in France or at Holywell in Shoreditch. He may have been first buried at Holywell, and his body later removed to St George's Chapel, Windsor Castle. His effigy is in the Rutland Chapel. His widow, Anne, died on 21 April 1526, and was buried at St. George's, Windsor. Manners owned a medieval manuscript copy of a chanson de geste, Les Voeux du Paon'' (The Vows of the Peacock), by Jacques de Longuyon, which is now Spencer Collection MS 009 in the New York Public Library. Manners wrote his name on a flyleaf of the manuscript, folio i verso, which may be viewed online. Marriage and issue Manners married, about 1490, Anne St Leger (c. 1475/6 – 21 April 1526), daughter and heiress of Thomas St. Leger by Anne of York, Duchess of Exeter, the second child and eldest surviving daughter of Richard of York, 3rd Duke of York, and Cecily Neville (1415–1495), daughter of Ralph Neville, 1st Earl of Westmorland. Anne of York was the elder sister of King Edward IV; Edmund, Earl of Rutland; Elizabeth of York, Duchess of Suffolk; Margaret of York, Duchess of Burgundy; George Plantagenet, 1st Duke of Clarence