House of Tudor ruled their domains for just over a century. Henry VIII was the only son of Henry VII to live to the age of maturity. Issues around the royal succession (including marriage and the succession rights of women) became major political themes during the Tudor era. The House of Stuart, descended from Henry VII's daughter Margaret, came to power in 1603 when Elizabeth I died and the Tudor line failed. For analysis of politics, diplomacy and social history, see Tudor period. The Tudors descended on Henry VII's mother's side from John Beaufort, 1st Earl of Somerset, one of the illegitimate children
House of Tudor Catholicism, and wrote a new will repudiating the 1544 will of Henry VIII. This gave the throne to his cousin Lady Jane Grey, the granddaughter of Henry VIII's sister Mary Tudor, who, after the death of Louis XII of France in 1515 had married Henry VIII's favourite Charles Brandon, the first Duke of Suffolk. Lady Jane's mother was Lady Frances Brandon, the daughter of Suffolk and Princess Mary. Northumberland married Jane to his youngest son Guildford Dudley, allowing himself to get the most out of a necessary Protestant succession. Most of Edward's council signed the "Devise for the Succession", and