What day did the son of Lady Margaret Beufort seize the English crown?
Henry VII of England Henry VII (Welsh: "Harri Tudur" ; 28 January 1457 – 21 April 1509) was King of England from seizing the crown on 22 August 1485 until his death on 21 April 1509, and the first monarch of the House of Tudor. He ruled the Principality of Wales until 29 November 1489 and was Lord of Ireland.
Margaret of France, Queen of England and Hungary Margaret of France (1157 – 18 September 1197) was, by her two marriages, queen of England, Hungary and Croatia.