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
Elizabeth Woodville, Countess Rivers Mary, but remained without legitimate issue. He was later beheaded by order of Richard III due to the threat he posed to Richard usurping from the crown from Anthony's nephew, Edward V, at Pontefract on 24 June 1483, but did leave a will. The lands attached to the Rivers title were inherited by Anthony's brother, Richard Woodville, 3rd Earl Rivers. The Barony of Scales went to his youngest brother, Edward Woodville, but Richard III ignored this provision and the title fell into abeyance. In 1485, John de Vere and William Tynedale became heirs to the Scales' estate. Elizabeth Woodville, Countess