Castle Maine, also recorded as Castle Magne and Castlemaine, was a medieval castle located at what is now Castlemaine, County Kerry. The castle, built in 1215, stood on a bridge over the River Maine. A defensive structure of considerable importance in Munster, it belonged first to the Earls of Desmond and later to the English Crown. Castle Maine was besieged on several occasions, including during the Nine Years' War when the garrison resisted for thirteen months. It was destroyed in 1652 during the Cromwellian conquest of Ireland.

Sir Richard Cox, 1st Baronet PC was an Irish lawyer and judge. He served as Chief Justice of the Common Pleas for Ireland from 1701 to 1703, Lord Chancellor of Ireland from 1703 to 1707 and as Lord Chief Justice of the Queen's Bench for Ireland from 1711 to 1714.