[3] Warine Vernon, elder son of the 4th Baron, had no male heir and his extensive estate was divided between his daughters and his brother Ralph, Rector of Hanwell.
His heir was Sir Richard, son of his second marriage to Matilda Grosvenor of Kinderton, Cheshire.
The Barony expired when his grandson Sir Richard, was captured after the Battle of Shrewsbury in 1403 and executed for treason.
[3] Branches of the family flourished and its influence spread beyond Cheshire over the following centuries, partly as a result of judicious intermarriage.
The full title was "Earl of Shipbrooke of Newry in the County of Down in the said Kingdom" (of Ireland).