For 10 points, name this victor at Bosworth Field, the founder of England's Tudor Dynasty.
Lambert Simnel and Perkin Warbeck were among the pretenders that this man faced, and Henry Stafford attempted to place this man on the throne in an abortive rebellion. The marriage of his sister Margaret to James helped lead to the union of the English and Scottish monarchies, and he married his son Arthur off to Catherine of Aragon. For 10 points, name this victor at Bosworth Field, the founder of England's Tudor Dynasty.
Lambert Simnel and Perkin Warbeck were among the pretenders that this man faced, and Henry Stafford attempted to place this man on the throne in an abortive rebellion.
Henry VII