Sir John Grey, of Groby, Leicestershire was a Lancastrian knight, the first husband of Elizabeth Woodville who later married King Edward IV of England, and great-great-grandfather of Lady Jane Grey.
Background
Grey was the son and heir of Elizabeth Ferrers, 6th Baroness Ferrers of Groby (1419–1483) and of Sir Edward Grey (c 1415–1457), a son of Reginald Grey, 3rd Baron Grey de Ruthyn. His father was summoned to parliament as Baron Ferrers of Groby in right of his wife.
Career
About 1454, Sir John Grey married Elizabeth Woodville, the eldest daughter of Richard Woodville, and Jacquetta of Luxembourg. They had two sons, Thomas, later Marquess of Dorset, born in 1455, and Richard, born in 1457. Richard was aged about 26 when killed by Richard III in June 1483.
She died a year later.
Sir John Grey was killed in the Second Battle of Street 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.