A Chronicle of England - Page 328 - Arundel, Gloucester, Nottingham, Derby, and Warwick, Before the King, James William Edmund Doyle, 1864
Richard fitzalan, 4th earl of arundel; thomas of woodstock, 1st duke of gloucester; thomas de mowbray, earl of nottingham; henry, earl of derby (later henry iv); and thomas de beauchamp, 12th earl of warwick, demand richard ii to let them prove by arms the justice for their rebellion. Date: 1864.