John fought in the Battle of Neville's Cross on 17 October 1346, where he was a Captain in the division commanded by his father.1 He held the office of Ambassador to France in 1368, jointly.1 He was invested as a Knight, Order of the Garter (K.G.) in 1369. He was joint commissioner to treat with Genoa in 1370. He held the office of Admiral of the North in July 1370. He held the office of Steward of the King's Household between 1372 and 1381. He held the office of Warden of the Marches between 1377 and 1383, jointly. He held the office of Keeper of Bamburgh Castle in December 1377, for life. He held the office of Seneschal of Gascony in 1378. He held the office of Keeper of Fronsac Castle in France in 1378. He held the office of Warden of the East Marches in 1381. He was joint commissioner to negotiate peace with the Scots in 1383. He held the office of Warden of the East Marches in 1386. He was joint commissioner to negotiate peace with the Scots in March 1387. Lord Neville gave the great Neville Screen to Durham Cathedral, and built the greater part of the present Raby Castle.
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