Costello is one of the ancient baronies of Ireland. Unusually for an Irish barony, it straddles two counties: County Mayo and County Roscommon. It comprises...

Massachusetts, United States Costello (barony), County Mayo, Ireland Casla (Costelloe in English), a village in County Galway, Ireland Costello (band), an American...

also a border to the south east with the barony of Boyle and to the south west with the Barony of Costello. Francis Taaffe, 3rd Earl of Carlingford and...

He died on 29 September 1856 when the barony of 1839 became extinct. However, he was succeeded in the barony of 1851 according to the special remainder...

race of Gaileng, and they gave their name to the barony of Gallen in Mayo. Viscount Dillon of Costello-Gallen, created in 1622 for Theobald Dillon, Lord...

County Mayo, Ireland. Knock is also a civil parish in the ancient barony of Costello. It is notable as the location of Knock Shrine - a Marian shrine and...

is in the barony of Leitrim, while Cortober, which is the County Roscommon side of the town, is in the civil parish of Killukin, in the barony of Boyle...

parallels to other gaelicised Norman names in baronies would be Bharóideach (Barretts) and Choistealach (Costello). The MacCaffery (Irish: Mac Gafraidh) sept...

1885–1922: That part of the barony of Costello not contained within the constituency of South Mayo and that part of the barony of Gallen not contained within...

otherwise Coshla otherwise Costello extending from the high sea unto the lake of Glennickmurren (Glenicmurrin) in the Barony and County aforesaid and of...