*R. Rees Davies, "The Revolt of Owain Glyn Dŵr" (1995) Oxford University Press ISBN 0-19-285336-8*Geoffrey Hodge, "Owain Glyn Dwr: The War of Independence in the Welsh Borders" (1995) Logaston Press ISBN 1-873827-24-5*Burke's Peerage & Baronetage, 106th Edition, Charles Mosley Editor-in-Chief, 1999. pp.
* R. Rees Davies, "The Revolt of Owain Glyn Dŵr" (1995) Oxford University Press ISBN 0-19-285336-8* Geoffrey Hodge, "Owain Glyn Dwr: The War of Independence in the Welsh Borders" (1995) Logaston Press ISBN 1-873827-24-5* Burke’s Peerage & Baronetage, 106th Edition, Charles Mosley Editor-in-Chief, 1999. pp.