Tigernan of Errew, Irish missionary, fl. c. 500-520.
In his "History of Mayo" (page 31), Knox writes:
"St. Tigernan of Errew worked in Tirawley in the early part of the sixth century. His paten still exists. No more is known of him except he was the founder of Errew Abbey, Lough Conn, County Mayo. The Breastagh Ogham Stone near the king's house of Rathfran commemorates a "son of Cairbre, son of Amalgaid", who may be father or uncle of Tigernan, or a great-grandson of Fiachra Elgach."
He was patron saint of south Tirawaley. His cousin, Cuimín, was a contemporary of St. Aodhan, who died in 562. Cuimin was related to Aodhan, and worked as a Christian missionary in Tirawley, and perhaps Tireragh.
Errew - Oireadh - is a slender peninsula jutting out from the western shore of Lough Conn. The Mac Fhirbhisigh family believed themselves to be natives of the area (Ó Muraíle, 1996, p.6).
The present Abbey of Errew seems to have been built in the early-to-mid 12th century "under the influence of the Cistercians, but before Irish architects were familiar with it." (Knox, p. 49). This abbey appears to have been the ecclesiastical head of the Ó Lactna lordship of An Bac and Glen Nephin.
Gilla Áedha Ua Maigín, Bishop of Cork (died 1172), is noted in the Annals of the Four Masters as "of the family of Errew of Lough Con."
Dubhaltach Mac Fhirbhisigh, also known as Dubhaltach Óg mac Giolla Íosa Mór mac Dubhaltach Mór Mac Fhirbhisigh, Duald Mac Firbis, Dudly Ferbisie, and Dualdus Firbissius was an Irish scribe, translator, historian and genealogist. Active during the years c.1640 to 1671, he was one of the last traditionally trained Irish Gaelic scholars, and was a member of the Clan MacFhirbhisigh, a leading family of northern Connacht. His best-known work is the Leabhar na nGenealach, which was published in 2004 as The Great Book of Irish Genealogies, by Éamonn de Búrca, more than 300 years after it had been written.
MacFirbis, also known as Forbes, was the surname of a family of Irish hereditary historians based for much of their known history at Lecan, Tireragh. They claimed descent from Dathí (d.418?/428?), said to be one of the last pagan Kings of Connacht, and were thus one of the many families who sprang from the Uí Fiachrach dynasty. The progenitors of the MacFirbis family descend from Amhailgadh, whose brothers included Fiachra Ealg and Eocha Breac.
Crossmolina is a town in the Barony of Tyrawley in County Mayo, Ireland, as well as the name of the parish in which Crossmolina is situated. The town sits on the River Deel near the northern shore of Lough Conn. Crossmolina is about 9 km (5.6 mi) west of Ballina on the N59 Road. Surrounding the town, there are a number of agriculturally important townlands, including Enaghbeg, Rathmore, and Tooreen.
Nephin or Nefin, at 806 metres (2646 ft), is the highest standalone mountain in Ireland and the second-highest peak in Connacht, Ireland. It is to the west of Lough Conn in County Mayo. Néifinn is variously translated as meaning 'heavenly', 'sanctuary', or "Finn's Heaven".
The Yellow Book of Lecan, or TCD MS 1318, is a late medieval Irish manuscript. It contains much of the Ulster Cycle of Irish mythology, besides other material. It is held in the Library of Trinity College Dublin.
Errew is a small rural settlement, about 8 km south from the county town of Castlebar, County Mayo, Ireland.
Nollaig Ó Muraíle is an Irish scholar. He published an acclaimed edition of Dubhaltach Mac Fhirbhisigh's Leabhar na nGenealach in 2004. He was admitted to the Royal Irish Academy in 2009.
Leabhar na nGenealach is a massive genealogical collection written mainly in the years 1649 to 1650, at the college-house of St. Nicholas' Collegiate Church, Galway, by Dubhaltach MacFhirbhisigh. He continued to add material until at least 1666, five years before he was murdered in 1671. The original 17th century manuscript was bequeathed to University College Dublin (UCD), by Dublin solicitor Arthur Cox in 1929, and can be consulted in UCD Library Special Collections. The manuscript can be viewed online at Irish Script on Screen, which is available in English, and in Irish. Leabhar na nGenealach, was reprinted, and published in a five volume edition in Dublin in 2004 as The Great Book of Irish Genealogies.
Cú Choigcríche Ó Cléirigh was an Irish historian and genealogist, known in English as Peregrine O'Clery.
Saint Cuimín is an Irish saint associated with the parish of Kilcummin in the barony of Tirawley, County Mayo. Kilcummin, a headland to the west of Killala Bay, preserves the remains of a religious site, with a church of early date and a graveyard.
Irish genealogy is the study of individuals and/or families who originated on the island of Ireland.
James Riabhach Darcy was Mayor of Galway in Ireland 1602–1603.
Ioseph of Lough Conn, Abbot of Clonmacnoise, died 904.
Gilla Isa Mac Fir Bisigh was an Irish historian, poet, mathematician and astronomer.
Fear Bisigh mac Domhnaill Óig, eponymous ancestor of Clann Mac Fir Bhisigh of Connacht, fl. 11th century.
Donell Ó Dubhda was King of Ui Fiachrach Muaidhe.
Dubda mac Connmhach, Eponym and Ancestor of the Clan Ó Dubhda of north Connacht, fl. 9th–10th century.
Eaghra Poprigh mac Saorghus was eponym and ancestor of the clan Ó hEaghra, King of Luighne Connacht.
The Uí Fiachrach were a royal dynasty who originated in, and whose descendants later ruled, the coicead or fifth of Connacht at different times from the mid-first millennium onwards. They claimed descent from Fiachrae, an older half-brother of Niall Noigiallach or Niall of the Nine Hostages. Fiachrae and his two full brothers, Brion and Ailill, were the collective ancestors of the Connachta dynasty that eventually became the new name of the province. Their mother was Mongfind.
Errew Abbey is a former Augustinian monastery and National Monument located in County Mayo, Ireland.