King Henry VII (1485-1509). House of Tudor. 13th great-grandfather of Queen Elizabeth II. Reign: 23 yrs, 7 mos, 28 days. Successor: Son, Henry VIII. Historical events during reign: Christopher Columbus crosses the Atlantic; John Cabot discovers Newfoundland, Canada which he though was Asia and claimed it for England. Henry VII's daughter married James IV of Scotland giving James' descendants a claim to the English throne. Henry VII died at age 52.