John Grey English nobleman and soldier; (1380s - 1439) (1380–1439) Parents Margaret de Ros Reginald Grey, 3rd Baron Grey de Ruthyn Children Edmund Grey, 1st Earl of Kent Thomas Grey, 1st Baron of Richemount Grey Siblings Margaret Grey, Lady Bonville Edward Grey Eleanor Grey John Grey, of Kempston Elizabeth Grey Elizabeth Grey Robert Grey Joan Grey Partners Lady Constance de Holand