Henry Tudor (later Henry VII) defeated and killed Richard III at Bosworth Field on August 22, 1485, bringing the Wars of the Roses to a close. By his marriage to Edward IV’s daughter Elizabeth of York in 1486, Henry united the Yorkist and Lancastrian claims. Henry defeated a Yorkist rising supporting the pretender Lambert Simnel on June 16, 1487, a date that some historians prefer over the traditional 1485 for the termination of the wars.