John de Ros, 7th Baron de Ros of Helmsley (c.1397 – 22 March 1421) was an English nobleman.
He was the eldest son of William de Ros, 6th Baron de Ros, and Margaret Fitzalan (d. 3 July 1438), the daughter of John FitzAlan, 1st Baron Arundel, by Eleanor Maltravers (d. 3 July 1438), younger daughter and coheir of Sir John Maltravers.
He served as a soldier of Henry V of England during the Hundred Years' War. Six years after the Battle of Agincourt, John participated in the Battle of Baugé. He was among the casualties along with his brother William de Ros, Thomas of Lancaster, 1st Duke of Clarence, the governor of Normandy and others. He was buried at the Belvoir Priory.
Marriage
John de Ros married Margery le Despencer, daughter and heiress of Philip le Despencer, 2nd Baron le Despencer, but had no issue by her. After his death, Margery married Roger Wentworth (d. 24 October 1452), esquire, younger son of John Wentworth of Elmsall, Yorkshire, by whom she had issue. She was fined £1000 for having contracted a dishonourable marriage far beneath her station.
Ancestry
Ancestors of John de Ros, 7th Baron de Ros |
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| | | | | | | | | | | | | | | | | | | 16. William de Ros, 1st Baron de Ros | | | | | | | | | 8. William de Ros, 2nd Baron de Ros | | | | | | | | | | | | | 17. Matilda de Vaux | | | | | | | | | 4. Thomas de Ros, 4th Baron de Ros | | | | | | | | | | | | | | | | 18. Bartholomew de Badlesmere, 1st Baron Badlesmere | | | | | | | | | 9. Margery de Badlesmere | | | | | | | | | | | | | 19. Margaret de Clare | | | | | | | | | 2. William de Ros, 6th Baron de Ros | | | | | | | | | | | | | | | | | | | 20. Edmund de Stafford, 1st Baron Stafford | | | | | | | | | 10. Ralph de Stafford, 1st Earl of Stafford | | | | | | | | | | | | | 21. Margaret Bassett | | | | | | | | | 5. Beatrice Stafford | | | | | | | | | | | | | | | | 22. Hugh de Audley, 1st Earl of Gloucester | | | | | | | | | 11. Margaret de Audley | | | | | | | | | | | | | 23. Margaret de Clare | | | | | | | | | 1. John de Ros, 7th Baron de Ros | | | | | | | | | | | | | | | | | | | | | | 24. Edmund Fitzalan, 9th Earl of Arundel | | | | | | | | | 12. Richard FitzAlan, 10th Earl of Arundel | | | | | | | | | | | | | 25. Alice de Warenne | | | | | | | | | 6. John FitzAlan, 1st Baron Arundel | | | | | | | | | | | | | | | | 26. Henry, 3rd Earl of Lancaster | | | | | | | | | 13. Eleanor of Lancaster | | | | | | | | | | | | | 27. Maud Chaworth | | | | | | | | | 3. Margaret FitzAlan | | | | | | | | | | | | | | | | | | | | | | | 14. John Maltravers, 1st Baron Maltravers | | | | | | | | | | | | | | | | | 7. Eleanor Maltravers, 2nd Baroness Maltravers | | | | | | | | | | | | | | | | | | | | 15. Gwenthin | | | | | | | | | | | | | | | |
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Peerage of England |
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Preceded by William de Ros | Baron de Ros 1414–1421 | Succeeded by Thomas de Ros |