John Grey of Groby Richard III in June 1483. <br> In 1491, his widow, by then Queen Dowager, became the co-heiress of her brother, Richard Woodville, 3rd Earl Rivers. She died a year later. Sir John Grey was killed in the Second Battle of St Albans in 1461, fighting for the Lancastrian cause. His widow, Dame Elizabeth Grey, later secretly married Edward IV who was the successful Yorkist claimant to the throne. John Grey of Groby Sir John Grey, of Groby, Leicestershire (c. 1432 – 17 February 1461) was a Lancastrian knight, the first husband of Elizabeth Woodville who later married King Edward IV
Catherine Woodville, Duchess of Buckingham was married to Henry Stafford, 2nd Duke of Buckingham; both were still children. A contemporary description of Elizabeth Woodville's coronation relates that Catherine and her husband were carried on squires' shoulders due to their youth. According to Dominic Mancini, Buckingham resented his marriage to a woman of inferior birth. However, the couple had four children: In 1483, Buckingham first allied himself to Richard, Duke of Gloucester, helping him succeed to the throne as Richard III, and then to Henry Tudor, leading an unsuccessful rebellion in his name. Buckingham was executed for treason on 2 November 1483. After Richard III was