MOCOLLOP, a parish, in the barony of COSHMORE, county of WATERFORD, and province of MUNSTER, 6 miles (W.) from Lismore, on the road to Fermoy, and on the river Blackwater; containing 3503 inhabitants. James, the seventh Earl of Desmond, died at his castle here in 1462. The castle continued in the possession of the Desmonds until forfeited by the treason of Gerald, the 16th earl, in 1583 it was defended against Cromwell's forces in 1650. The surface of the parish is chiefly rugged, and the land of inferior quality: on its verge, in the picturesque dell of Araglin, were formerly some iron-works. The seat of Francis Drew, Esq., is situated in a richly planted demesne, having an unusual extent of orchard, the cider produced from which is very celebrated. The living is a rectory and vicarage, in the diocese of Lismore; the rectory is united to that of Lismore, and appropriate to the dean and chapter; the vicarage is also united to that of Lismore, and appropriate to the vicars choral. The amount of tithes is included in that of Lismore. The church is a neat building. In the R. C. divisions the parish forms part of the union or district of Lismore: the chapel is at the village of Ballyduff. In a school, aided by F. Drew, Esq., and the vicars choral, about 120 children are taught; there are also three private schools, in which are about 190 children, and a Sunday school. Ruins of an ancient castle exist.