Dermot MacCarthy, feudal lord and founder of the house of Muskerry, was killed in 1367. Cormac MacCarthy, slain in 1494, had been lord of Muskerry for 40 years. Donoch MacCarthy Mor was, in 1556, created Earl of Clancare (Clancarthy), and Viscount Valentia. Cormac Oge MacCarthy became a viscount in 1628. There was a Ceallachan MacCarthy who married Elizabeth Fitzgerald, daughter of the Earl of Kildare, and died 1676. A Charles MacCarthy, born about 1721, was a solicitor, seneschal of the manor of Macroom, recorder of Clonakilty, and clerk of the crown for the county of Cork. A Donoch MacCarthy, lord viscount Muskerry, was an Irish officer exiled to the continent in 1641–’42. He had commanded the king’s forces in Munster against Cromwell. At the restoration of Charles II, Donoch returned to Ireland and contested the right of Florence and Charles McCarthy to the title and dignity of “MacCarthy Mor.” He was created Earl Clancarthy, and died in 1665. It is to be regretted that we do not know the name of the brother of Charles MacCarthy, the Rhode Island settler—the one to whom he refers in his will as having written from Kinsale. Did we have access to that letter which Charles of Rhode Island received, the desired knowledge would, no doubt, be obtained. But at this distance of time, all efforts to locate the letter have failed. It seems reasonable to conclude that the brother of the Rhode Island pioneer was a man of some prominence—possibly of much prominence. It has been suggested that he was Donoch, Earl Clancarthy, just mentioned, but this could hardly have been so, as the Earl died in 1665 and Charles of Rhode Island, when he made his will in 1682, speaks of his brother as still living.