The surname O-larrissey was first found in County Mayo (Irish: Maigh Eo) located on the West coast of the Republic of Ireland in the province of Connacht, where they held a family seat as chiefs descended from the great Hy Fiachrach, a group of tribes claiming descent from King Niall of the Nine Hostages. Irish history, after the Norman Conquest of England, was strongly influenced by the invasion of Strongbow in 1172, almost equal to the enormous Irish cultural impact on EnglandScotland, Wales and the whole of Europe before the Norman Conquest from the 1st to 7th centuries. Many Irish clanns, sept names were intermixed and family groupings became almost indistinguishable. The Larrissey also branched to Kilkenny.
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Spelling variations of this family name include: Larissey, Larrissey, O'Larrissey, O'Larissey and many more.
Early Notables of the O-larrissey family (pre 1700)
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Migration of the O-larrissey family
Some of the first settlers of this family name or some of its variants were: the name represented in many forms and recorded from the mid 17th century in the great migration from Europe. Migrants settled in the eastern seaboard from Newfoundland, to Maine, to Virginia, the Carolinas, and to the islands..