Lawyers for the head of the O'Brien clan, who this week secured judgment for €7.9m against a company controlled by businessman Denis O'Brien which reneged on a land deal, are now seeking to have the well known entrepreneur and other directors of the company made personally liable for the costs of the action.

The High Court has awarded €7.9m in damages to 18th Baron Inchiquin, and head of the O'Brien clan, against a company controlled by businessman Denis O'Brien over the repudiation of an agreement to buy lands at Dromoland estate in Co Clare.