John CORNWALL was born in "At sea in St. Michael's Mount Bay, Cornwall"; died on 11 Dec 1443 in Ampthill; was buried in Chapel in the Cemetery of the Black Friars by Ludgate.
Henry IV King Of ENGLAND was born on 04 Apr 1366 in Bolingbroke Castle, England; died on 20 Mar 1413 in Jerusalem Chamber, Westminster Abbey; was buried in Canterbury Cathedral.