However, soon after 1086 William II created the earldom of Warwick for Henry de Beaumont, who changed his name to Henry de Newburgh, appointed him Constable of Warwick Castle and gave him the great estate of Thorkell of Arden. It is not known why Thorkell was dispossessed, he may have only been granted a lifetime tenure of his lands the estate passing to the Crown on his death or it may have been that his son died before him and that he left no direct heir. His family, the Ardens however, held land from the Earls of Warwick for another 200 years.
However, shortly after 1086 William II established the earldom of Warwick for Henry de Beaumont, who changed his name to Henry de Newburgh, appointed him Constable of Warwick Castle and granted him the substantial estate of Thorkell of Arden. The reason for Thorkell's disinheritance is unknown; he might have received a lifetime tenure of his lands, which would pass to the Crown upon his death, or it could be that his son predeceased him without leaving any direct heirs. Nonetheless, the Ardens continued to hold land from the Earls of Warwick for another 200 years.