nellgwyne:

   On this day in history, 28th January 1457, Henry VII was born at Pembroke Castle in Wales. His parents were Edmund Tudor, 1st Earl of Richmond and son of Owen Tudor and Catherine of Valois, and his 13 year old wife, Margaret Beaufort, great-granddaughter of John of Gaunt, 1st Duke of Lancaster, and his mistress (and later wife) Katherine Swynford. It was through this Beaufort side, going back to John of Gaunt, that Henry VII derived his claim to the throne of England and he became King after defeating Richard III and his troops at the Battle of Bosworth on the 22nd August 1485.