40 (the number of Gaelic lords there) to hundreds. O Mordha vowed to avenge the deaths of his relatives. He kidnapped two Englishmen called Harrington and Cosby, relatives of important people. Ó Mórdha's wife and all but Ó Mórdha himself and one of those who were with him were killed. Ó Mórdha managed to fight his way out, and 'hacked and hewed’ Harrington so that Sidney saw Harrington's brains moving when his wounds were being dressed. Ó Mórdha rushed between a soldier's legs and escaped practically naked. He hoped for help from Spain, and, with the backing of his friend, John Burke, he prepared to retaliate for the Massacre of Mullaghmast. He allied himself with the Clan O'Connor, and gathered an army. On 18 March 1576-7 the seneschal for Queen's County was ordered to attack Ruairí Óg and the Clan O'Connor with fire and sword. But that same month, Clans O'More and O'Connor avenged Mullaghmast with a raid into the Pale. Sidney wrote to the council the same month: "Rory Oge O'More and Cormock M'Cormock O'Conor have burnt the Naas. They ranne thorough the towne lyke hagges and furies of hell, with flakes of fier fastned on poles ends." Death The Queen's agents had put an enormous reward for the time, £1,000, on his head, as was their practice with Irish clan chiefs who resisted. In an attempt to entrap Barnaby Fitzpatrick, 2nd Baron Upper Ossory, into his hands, he was killed by members of the Fitzpatrick family in June 1578, and his head was brought to Dublin Castle, which at the time was ringed by the decapitated heads of major 'rebels'. Descendants O'More left a son, Eoghan mac Ruairí Ó Mórdha. John Burke, son of the Earl of Clanricarde, took charge of Eoghan. The English captured him after some difficulty, and he returned and recovered almost all Laois. He was killed in a skirmish near Timahoe on 17 August 1600. English travel writer Fynes Moryson called him 'a bloody and bold young man', and Irish chroniclers the Four Masters 'an illustrious, renowned, and celebrated gentleman'. After his death, the O'Mores as an Irish clan were doomed. Colonel Rory O'More (in Irish: Ruairí Óg Ó Mórdha; c.1620-c.1653), principal organiser of the Irish Rebellion of 1641, was his nephew. The sole descendants of the O'More family that survive to this day are those "house of More O'Ferrall". The hereditary title of