After Henry II murdered his former ally Thomas Becket, he did penance at Selskar Abbey, founded in 1190. Basilia, the sister of Richard Fitz Gilbert de Clare (better known as Strongbow), is thought to have married one of Henry II's lieutenants in the abbey. Its present ruinous state is a result of Cromwell's visit in 1649. Admission is by guided tour only – gather at the Westgate, off Spawell Rd.