The old name of Crotto is Stackstown. After the Stacks forfeited Crotto, it came into the hands of Henry Ponsonby, a younger brother of a colonel in Cromwell’s Irish army. The male line of the Ponsonbys of Crotto ended in 1762, with Henry’s great- grandson Richard Ponsonby of Crotta, MP for Kinsale, who had no issue by either of his two marriages, the second to a daughter of John Blennerhassett, Esq., of Ballyseedy. Richard Ponsonby bequeathed on his death in 1762 Crotta and all his estates to John Carrique, eldest son of his sister Rose Ponsonby by her husband John Carrique, of Glandine, near Kilgobbin, in West Kerry, on condition of his assuming the name and arms of Ponsonby in addition to his own. John Carrique was the grandson of William Carrique, an officer in Cromwell’s army, subsequently, like Sir William Petty, a surveyor of lands forfeited in 1649; and he, William Carrique, obtained for his services a grant of the forfeitures of the FitzGeralds at Glandine and other Anglo-Irish, including a portion of Sir Arthur Denny’s estate, who, like many more of the old Protestant families, royalists in 1641-60, had to surrender some of their lands to satisfy the Cromwellian army’s arrears of pay, and the demands of Englishmen of various ranks, who had advanced money for the expenses of the war. William Carrique, after peace was restored, had his grant from Cromwell confirmed under Charles the Second in 1670, and he married Ellen, daughter of Sir Arthur Denny by his wife Lady Ellen Barry. Thus the marriage of John Carrique of Glandine and Rose Ponsonby of Crotta united in the hands of their son William Carrique Ponsonby two large estates in north and west Kerry in the year 1762, which however were all sold by their descendants in less than a century, and not a single descendant of either Carriques or Ponsonby’s in the male line now remains in Kerry.