Sir John Deincourt, 5th Lord Deincourt (1381/2-1406) was the son of William Deincourt, 3rd Lord Deincourt and Alice de Neville.He succeeded his brother as 5th Lord Deincourt in 1384. He died on 11 May 1406 at age 24.
Children of Sir John Deincourt, 5th Lord Deincourt
William Deincourt, 6th Lord Deincourt b. 1403, d. 1422/3
Margaret Deincourt d. 15 Sep 1454
Alice Deincourt b. 25 Feb 1403/4, d. 10 Feb 1473/74