John Sutton, 1st Baron Dudley, KG (25 December 1400 – 30 September 1487) was an English nobleman. A diplomat and councillor of Henry VI, he fought in several battles during the Hundred Years War and the Wars of the Roses, and acted as Lord Lieutenant of Ireland 1428–1430.
The barony was inherited by his grandson, Edward Sutton, 2nd Baron Dudley, son of Sir Edmund Sutton who was the heir but died after 6 July 1483 but before his father.
As Lord Steward in 1422 Sutton brought home the body of King Henry V to England, and was chief mourner and standard bearer at his funeral. From 1428–1430 he served as Lord Lieutenant of Ireland. Dudley fought in several campaigns throughout the period of the wars with France, and on several occasions acted as a diplomat in the mid-1440s, when he also met Charles VII of France. In 1443 he was made a king's councillor and became one of the favourite companions of King Henry VI. In 1451 he became a Knight of the Garter. Early on in the Wars of the Roses he was a resolute defender of the House of Lancaster, but changed his allegiance to York before the Battle of Towton in 1461.
At the First Battle of St Albans 1455 John Lord Dudley took part with his son Edmund, where he was taken prisoner along with Henry VI. At the Battle of Blore Heath on 23 September 1459 he was again present, equally with his son Edmund Sutton, commanding a wing under Lord Audley. Dudley was wounded and again captured. At the Battle of Towton (1461) he was rewarded after the battle for his participation on the side of Edward, Earl of March, son of Richard, Duke of York. On 28 June that year, Edward IV was proclaimed King in London.
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