Reginald Grey , 3rd Baron Grey de Ruthyn ( c. 1362 -- 30 September 1440 ) , a powerful Welsh marcher lord , succeeded to the title on his father Reginald 's death in July 1388 .
Reginald Grey , 3rd Baron Grey de Ruthyn ( c. 1362 -- 30 September 1440 ) , was a powerful Welsh marcher lord . He became Baron after his father 's death in July 1388 .