de Mowbray (d.1410), sister of Thomas de Mowbray, 1st Duke of Norfolk, and daughter of John de Mowbray, 4th Baron Mowbray (d. 17 June 1368) and Elizabeth de Segrave. Elizabeth Grey (d. 11 August 1412), who married Philip Darcy, 4th Lord Darcy of Knaith (d. 24 April 1399). Agnes Grey (d. 25 October 1420), who married Sir Thomas Umfraville (d. 12 February 1391). Footnotes References External links Remains of Heaton Castle, likely built by the chronicler, Sir Thomas Grey Scalacronica, translated by Sir Herbert Maxwell 1369 deaths English chroniclers 14th-century English historians Year of birth unknown