O Finn - Irish / Ua Fionn - fionn / fair. A Sept / Family branch, who had their territory in Coolavin in Co. Sligo in the north - west of the Connacht Province and were the Chiefs of Calry in territory adjoining Dartry in the Barony of Dromahaire  and part of Co. Sligo at Calry there.

O Finn - Irish / Ua Fionn - fionn (fair). A Sept / Family branch who were Erenaghs of Kilcolgan, who had their territory in Co. Galway in Southern Connacht and were also nearby in the Munster Province.

O Finn - Irish / Ua Fionn. Heremonian Dal Cuinn Fir Rois Sept / Family branch, who had their territory in Co. Monaghan in Southern Ulster. Ancestors: 87.Eochy / Echu Doimhlen, *86.Cairbre Liffeachair the 117th King of Tara / Ireland.

O Finn. A Sept / Family branch, who had their territory in Co. Leitrim in Northern Connacht.

Finnamore / fin amour / dear love. French origins in the Leinster Province in the 13th Century AD.

O Finnegan or O Finegan of Co. Roscommon - Irish / Ua Fionnagain - fionn (fair haired). Gaelic Milesian Irian Sept / Family branch, who had their territory in the north of Co. Roscommon in the east of the Connacht Province and nearby in the north - east of Co. Galway in Southern Connacht. There are two places known as Bally Finnegan (The Place of the Finnegans) in the Co. Roscommon and Co. Galway border area. Ancestor: 37.Ir (Irians).

O Finnegan or O Finegan of Co. Cavan - Irish / Ua Fionnagain - fionn (fair haired). Heremonian Dal Cuinn Ui Briuin Breifne Sept / Family branch, who had their territory in Co. Cavan, Co. Monaghan in the 3 Colla kingdom of Orghialla / Airghialla / Oriel - in Southern Ulster and nearby in Co. Louth in the north - east of Northern Leinster. Ancestors: 90.Brion the first Dal Cuinn King of Connacht (Ui Briuin), *89.Eochy Mugmedon the 124th King of Tara / Ireland.

O Finnegan - Irish / Ua Fionnagain. Heremonian Dal Cuinn 3 Colla Sept / Family branch. Ancestors: 87.Eochy / Echu Doimhlen, *83.Cairbre Liffeachair the 117th King of Tara / Ireland.

O Finnelan. A Sept / Family branch who were Kings and had their territory in Co. Meath in the south - east of Northern Leinster.

O Finneran - Irish / Ua Finntighearn. A Sept / Family branch who were the Chiefs of the Ui Mella Sept, who may have had their territory in Co. Westmeath  in the south - west of Northern Leinster

O Finneran - Irish / Ua Finnthighearn - fionn / fair haired - tighearna / lord. A Sept / Family branch, who had their territory in Co. Galway and nearby in Co. Roscommon in Southern Connacht.

O Finnerell - Irish / Ua Fiongardail. A Sept / Family branch, who had their territory in Co. Clare in the north - west of Tuaiscert Mhumhain /  Thomond / Northern Munster.

Mac Finnevar or Mac Ginver - Irish / Mag Fhionnbhairr. Gaelic Milesian Irian Conmaicne Magh Rein Muintir Geradhain Sept / Family branch of the Tellach Finnoigi, Tellach Gabhadhain, who had their territory at Lough Gowna in Co. Longford in the north - west of Northern Leinster and nearby in Co. Leitrim who were the Chiefs of Muintir Greadain. Especially see Mac Ginver.

Finney. Used as a variant for Feeney, which see, in the Ulster Province.

Mac Finucane - Irish / Mheic Fionnmhacain - fionn (fair haired) mac (son). A Sept / Family branch, who had their territory in Co. Clare in the north - west of Tuaiscert Mhumhain / Thomond / Northern Munster. Also known as Kinucane there.

Mac Firbis or Forbes - Irish / Mheic Firbhisigh (man of property). Heremonian Dal Cuinn "northern" Ui Fiachrach Muadh Ui Dubhda Sept / Family branch who were Chiefs and hereditary historians, who had their territory in the south of Co. Sligo in the north - west of the Connacht Province. They were dispossessed from their Lecan Castle there where they were scholars and historians who compiled the Yellow Book of Lecan and the Great Book of Lecan. Dubhaltach Mac Firbis the hereditary historian from Co. Sligo taught in Co. Tipperary in the north - east of Ormond / North Eastern Munster and he followed on from the Book of Leinster, which ended in 1119 AD, the Book of Ballymote and the Book of Lecan, which ended in 1399 AD. He wrote down the genealogies of the Irish Tuaths / Family regions, the Irish Saints, the Irish Kings, the Irish Chroniclers and the Irish Brehon Laws from 1399 AD up to 1646 AD. He continued to do this work, during Oliver Cromwell's Invasion while Cromwell was endeavouring to wipe out all trace of the Irish Catholics, and every Irish door was open to him up to his 85th year when Crofton an Englishman murdered him at Doonflin in Co. Sligo while he was on his way down to Dublin. The last member of their male line was also stabbed to death in Skreen. They are now usually known as Forbes. Ancestors: *89.Eochy / Eochaidh Mugmedon the 124th King of Tara / Ireland the father of 90.Fiachra the second Dal Cuinn King of Connacht who is the direct male line ancestor of the Ui Fiachrach Sept. Of his sons, *91.Fearadach / Dathi / Nathi was the 127th King of Tara / Ireland who led a great expedition into France were he was killed by Lightning in 428 AD who was the father of 92.Ailill / Oilioll Molt who became the 129th King of Ireland who was slain in the Battle of Ocha in 478 AD and became the ancestor of 97.Feradach the 7th King of Connacht and 99.Mael / Donn Cothaid the 10th King of Connacht, 92.Fiachra Ealg became the ancestor of the O Dowds, 91.Macc Ercae became the ancestor of the Fir Chera Sept,  91.Eochy Breac / Echu / Eocha became the ancestor of the O Shaughnessys, and 92.Awley / Amhailgadh a younger son, who had his territory in Tir Awley / Tyrawley in Co, Mayo became the ancestor of the Mac Firbis, 93.Feargus his son was the father of 94.Murray / Muireadach, 95.Conaing, 96.Enna, 97.Conor / Conchobhar na Conceirte - of the Hounds, 98.John / Sean, 99.Lochlann of Loch Conn, in Co. Mayo, 100.Aongus, 101.Donnell / Domhnall Mor the Greater 102. Donnell Oge the Younger, 103.Fearbiseach the direct male line ancestor of the Clann Firbisigh, 104.Giolla Phadraig who was fostered by St. Tighearnan the founder of Errew Abbey at Crossmolina near Loch Conn, 105.Donogh / Donnchadh Mac Firbis.

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