attainted of felony on 14 May1631, forfeiting his English Peerage, as it was created for heirs general but retaining his Irish Earldom and Barony (since it was an entailed honour protected by the statute De Donis), which passed to his son when he was beheaded that same day.
died sine prole22 April1777, at which time the Earldom of Castlehaven and the Barony of Audley of Hely became extinct. The Barony of Audley created by writ of 1312 is deemed to have devolved upon his nephew, son of his sister Elizabeth, namely George Thicknesse, later Thicknesse-Touchet.
George Thicknesse, later Thicknesse-Touchet, 19th Baron Audley