Sir John Darcy 1st Lord Darcy de Knayth
- Born: After 15 Jun 1271
- Marriage (1): Emmeline Heron
- Marriage (2): Joan de Burgh on 3 Jul 1329
- Died: 30 May 1347
Sir John Darcy, 1st Lord Darcy de Knayth was born after 15 June 1271.1 He is the son of Sir Roger Darcy and Isabel d'Aton. He married, firstly, Emmeline Heron, daughter of Walter Heron. He married, secondly, Lady Joan de Burgh, daughter of Richard de Burgh, 2nd Earl of Ulster and Margaret de Burgh, on 3 July 1329. He died on 30 May 1347.
In 1306 he was outlawed for felony. On 19 May 1307 he was pardoned. He held the office of Constable of Norham Castle in 1317. He held the office of Sheriff of Nottinghamshire between 1319 and 1322. Between 1319 and 1322 he was Sheriff of Derbyshire. He was a Member of Parliament (M.P.) for Nottinghamshire in 1320. He held the office of Sheriff of Lancashire in 1323. He held the office of Justiciar of Ireland between 1323 and 1344. He held the office of Sheriff of Yorkshire from 1327 to 1328.
He was created 1st Lord Darcy de Knayth [England by writ] on 27 January 1331/32. He held the office of Steward of the King's Household between 1337 and 1340. He held the office of Chamberlain between 1341 and 1346. He held the office of Constable of Nottingham Castle between 1344 and 1347. He fought in the Battle of Crécy in 1346. He lived at Knaith, Lincolnshire, England. He lived at Upton, Lincolnshire, England. He lived at Kexby, Lincolnshire, England. He held the office of Constable of the Tower of London from 1346 to 1347.
John married Emmeline Heron. (Emmeline Heron was born about 1275.)
John next married Joan de Burgh, daughter of Richard de Burgh 2nd Earl of Ulster and Margaret de Burgh, on 3 Jul 1329. (Joan de Burgh was born about 1280 and died on 23 Apr 1359.)