George succeeded him and further Viscount Hereford descent from him .
His older brother Edward Devereux , 12th Viscount Hereford had succeeded their father but died childless on 1 August 1783 .
George succeeded Edward Devereux and further Viscount Hereford descent from father .
His older brother Edward Devereux , 12th Viscount Hereford had succeeded their father but died childless on 1 August 1783 .