Muscarydonegan. The latter cantred, variously called Muscry-donnegan or "O'Donegan's country" or "Múscraighe Tri Maighe", was a rural deanery in the Diocese of Cloyne. It is now identified as the barony of Orrery and Kilmore. The name "Olethan" (or "Oliehan") is an anglicisation of the Gaelic Uí Liatháin which refers to the early medieval kingdom of the Uí Liatháin. This petty kingdom encompassed most of the present Barony of Barrymore and the neighbouring barony of Kinnatalloon. The name Killyde survives in "Killeady Hills", the name of the hill country south of the city of Cork. These cantreds or baronies had been expropriated by another (half) first cousin, Ralph Fitz-Stephen (died 1182), the grandson of Nesta by Stephen, Constable of Cardigan. Robert Fitz-Stephen eventually ceded these territories to Philip de Barry, his half-nephew. In 1181, King Henry II of England ennobled Robert de Barry as Baron Barry of Olethan and Ibawne. On 24 February 1206, King John I of England confirmed William de Barry, Philip's son, in the possession of these territories and, by letters patent, conferred on him the Lordships of Castlelyons, Buttevant and Barry's Court in East Cork. In 1267, King Henry III of England appointed Lord David de Barry as Chief Justice of Ireland. Another member of the family, William de Barry, was justice in eyre 1289-94. In 1385, King Richard II of England raised John Barry to the viscountcy as Viscount Buttevant. In 1627, King Charles I of England elevated David Barry as Earl of Barrymore. Family seat Barryscourt Castle near Carrigtwohill was the seat of the Barry family from the 12th century until 1617 when they removed to Barrymore Castle in Castlelyons. In 1771, the 6th Earl saw Barrymore Castle burn to the ground. The family fortunes were subsequently dissipated by his issue, the 7th and 8th Earls. The name of the town of Buttevant is believed to derive from the family's battle cry – Boutez-en-Avant, roughly translating as "Kick your way through". Irish descendants The most prominent Gaelic neighbours of the de Barrys were the MacCarthy Reagh dynasty, rulers of the principality or petty kingdom of Carbery. For the most part, with not a great many exceptions, the two families kept on good terms, and also regularly intermarried. The de Barrys are descended from several of the MacCarthy Reagh princes through their daughters. Likewise the Barrys intermarried with the also powerful MacCarthys of Muskerry. Some Barrys