Magournahan - O Mahony 

Magournahan. Especially see Gordon.

Magourtey. See Mac Gourkey.

Magovern. Especially see Mac Govern.

Magowen. See Mac Keon.

Magra. See Mac Grath.

Magrane. See Mac Grane.

Magrannill. See Mac Rannell.

Magrath. A Sept / Family branch, who had their territory in Co. Clare , Co. Kerry, Co. Tipperary and Co. Waterford in the Munster Province. See especially Mac Grath.

Magrath. A Sept / Family branch, who had their territory in Co. Fermanagh in the south - west of the Ulster Province. Especially see Mac Grath.

Magraw. See Mac Grath.

Magree. See Mac Grae.

Magreevy. See Mac Greevy.

Magrudden. See Mac Groden.

Maguigan. See Mac Guigan.

Maguire or Mac Guire or Mac Gwyre - Irish / Mag Uidhir. Heremonian Dal Cuinn Colla Da Crioch Siol Daim Argait Sept / Family branch, who had their territory and were the Princes of Co. Fermanagh in the south - west of the Ulster Province. The Maguire was the Chief at Belcoo with their Crowning place at the Rock on the Cuilage Mountain, 2188' high in the west of Ulster. Kinsmen to Mac Alear / Mac Eleer / Mheic Gilla Uidhir, Mac Anally / Mac Cowley / Mac Culloo / Mheic Con Uladh, Mac Auley / Mheic Amhlaoibh, Mac Aleese / Mac Gileece / Mac Leece / Mheic Giola Iosa, Mac Breen / Mheic Braoin, Mac Caffery / Mac Godfrey / Mheic Gafraidh, Mac Cassidy / Mheic Asidha, Mac Court / Mac Courtney / Mheic Cuairt, Mac Cormack / Mheic Cormaic, Mac Corry / Mac Gorry / Mac Godfrey / Mac Gohery / Mac Goffrey / Mheic Gothraidh, O Darragh / O Darra / O Darrough / Oaks / Ui Dubhdhara, Mac Gee / Magee / Mheic Aodh, O Heany / O Heeny / O Hegney / O Higny / Bird / Ui hEgneach, Mac Lilly / Mac Calilly / Mac Lely / Mac Lillie / Mac Alilly / Mac Alyly / Mheic Ailghile, Mac Loughlin / Mac Lachlan / Mheic Lochlainn, Mac Manus / Mheic Maghnuis, Mac Morrow / Mac Murrow / Mheic Murchada (Clann Aodh).  Ancestors: *86.Cairbre Liffeachair the 117th King of Tara / Ireland. 87.Eochy / Echu Doimhlen, 88.Murray / Muireadach Colla Da Crioch - of the Two Countries, 89.Rochadh, 90.Deach Dorn, 91.Fiach, 92.Criffan / Crimthann Liath, 93.Eochy, 94.Cairbre an Daimh Airgid, 95.Cormac ancestor of the Mac Guires, 96.Aodh, 97.Fergus, 98.Cormac, 99.Egneach / Fechin,100.Iargallach, 101.Luan / Ir, 102.Cearnach, 103.Odhar / Uidhir, 104.Orgiall / Oriel, 105.Serrach, 106.Odhar / Uidhir the direct male ancestor of the Maguires / Mac Uidhir,  Especially see Mac Guire.

Maguirk. A Sept / Family branch, who had their territory in Co. Tyrone in Central Ulster.

Magauran or Maguaran. Especially see Mac Govern.

O Mahada or O Mahady - Irish / Ua Moithide. A Sept / Family branch, who had their territory in the adjoining Counties of Co. Longford and Co. Westmeath in the west of Northern Leinster and also nearby in Co. Roscommon in the east of the Connacht Province.

Mahaffy, or Mac Afee or Mac Haffy or Mac Fie, which see. Highland Scottish origins. Gaelic / Mheic Dhuibhsithe - sioth / peace - (Descended from a black - haired man of peace.) They were in Co. Donegal in the north - west of the Ulster Province.

Mac Mahan. Especially see Mac Mahon.

Maharg. See Mac Ilhagga.

Maharry. Used as a variant for Mac Carry, which see, in the Ulster Province.

O Maher or O Meagher, which see. Irish / Ua Meachair - meachar (hospitable). Heberian Cianachta Sept / Family branch, who were the Chiefs of Ikerrin near Roscrea in the north of Co. Tipperary in the north - east of Aur Mhumhain / Ormond / North East Munster where they were able to hold onto their lands there until modern times. Ancestors: *84.Ailill Oluimm the 1st Heberian King of Munster. 85.Cian the ancestor of all of the Cianachta Septs, 86.Teague / Tadhg mac Cian, 87.Conley / Connla the ancestor of the Cianachta Ui Conchaibhain Septs in the Ulster Province, 88.Fionnachta a younger brother of 88.Iomchadh Uallach the ancestor of the O Carrolls of Ely, 89.Eochy / Eochaidh, 90.Etchon, 91.Lugha, 92.Feaxch / Fiacha, 93.Felim, 94.Donncuan, 95.Lugha, 96.Fergna, 97.Aodh, 98.Meachar, 99.Cu Coill3, 100.Kelly / Ceallach, 101.Meachar the direct male line ancestor of the O Meaghers / O Mahers, 102.Dluthach, 103.Teague / Tadhg Mor, 104.Eigneach, 105.Donnell, 106.Moroch O Meagher the first to use their surname, 107.Meachar, 108.Feach whose brother, 108.Eochy / Eochaidh is the direct male line ancestor of the O Kehoes / Mac  Keoghs of Munster, 109.Iarin, 110.Donogh, 111.Murtogh, 112.Melachlin, 113.Fionn, 114.Dermod, 115.Gilla na Naomh who had an elder brother Gilbert, 116.Teague, 117.Gilleneuffe / Gilla na Nieve O Meagher, 118.Daniel born 1508 AD and died in 1576 AD, 119.John born 1511  AD and died in 1599  AD who had Ballybeg, Camlin, Clonyne, Clonghmurle Grange and Gortvollen / Kerrin in Co. Tipperary, 120.John O Meagher born 1570 AD and died in 1640 AD, 121.Thaddeus born 1603 AD died 1650 AD, 122.John born 1635 AD died 1705 AD who in 1653 AD along with his mother was transplanted to Connacht by Oliver Cromwell the English Protector, 123.Thaddeus born 1662 AD died 1732 AD, 124,John born 1706 AD died 1775 AD, 125.Thaddeus born 1739 AD died 1811 AD, 126.John born 1772 AD died 1844 AD, 127.Joseph T. O Meagher born 1803 AD died 1886 AD. 128.John William born 1829 AD died 1884 AD, Joseph Dermod O Meagher born 1864 AD.

Mahew. See Mayo.

Mac Mahon or Mac Mahoun or Mac Mahoune - Irish / Mheic Mathghamhna of Clare. Mac Mathuna used later. Heberian Dal gCais Ui Bloid Ui Turlough Ui mBriain Sept / Family branch who were Chiefs and Kings in Co. Clare in the north - west of Thomond / Tuaisceart Mhumhain / Northern Munster whose territory was there in the west. They succeeded the Gaelic Milesian Irian Mac Donnells, O Baskins, O Mulcorcras and O Keelys as the Chiefs of Corca Baiscinn and Kennedy Ochar, gaining the territories of the Baronies of Moyarta and Clonderlaw there. Decended from 109.Mahon O Brian who died in 1129 AD the son of *108.Murtagh Mor O Brian the 44th King of Munster and 180th King of Ireland who died in 1119 AD. He was the great - grandson of *105.Brian Boru the Dal gCais King of Thomond, 41st King of Munster and 175th High King of Ireland in the early 11^th Century AD. Their last Inaugurated Chief was killed fighting against the English at the Battle of Kinsale in Co. Cork in 1602 AD. This Family was the Church custodian for the O Brians / Ui mBriain and their motto was, "Thus, we keep holy, things." Ancestors: 91.Cas (Dal gCais) the King of Thomond / Northern Munster, 92.Blood / Blod (Ui Bloid), 93.Cairthenn Fionn Oge Mor, 94.Eochy / Eochaidh Baill Dearg, 95.Conall, 96.Aodh Caomh the King of Munster, 97.Cathal, 98.Turlough / Toirdhealbhach (Ui Turlough), 99.Mahon, 100.Anluan, 101.Corc, 102.Lachtna, 103.Lorcan / Fingin, 104.Kennedy / Ceaneidigh, *105.Brian Boru the King of Thomond, 41st King of Munster and 175th High King of Ireland (Ui mBriain), 106.Teague / Tadhg O Brian, *107.Turlough Mor O Brian the 178th King of Ireland who died in 1086 AD, *108.Murtagh O Brian the 44th King of Munster and the 180th King of Ireland, 109.Mahon O Brian.

Mac Mahon of Corca Baiscin in Co. Clare. Heberian Dal gCais Ui Bloid Ui Turlough Ui mBriain Sept / Family branch.Ancestors: 108.Mahon O Brian the direct male line ancestor of the Mac Mahons of Corca Baiscin in Co. Clare, 109.Murtogh, 110.Dermod Mac Mahon first to use their surname, 111.Murtough na Mongnach, 112.Donogh, 113.Dermod, 114.Rory Buidhe, 115.Donogh na Glaice, 116.Teague Roe who had a brother 116.Donogh, 117.Teague, 118.Turlogh Mac Mahon, 119.Teague who had 2 brothers, 119.Brian and 119.Donogh who may be the ancestor of the Mac Mahons of France, 120.Murtough, 121.Teague, 122.Turlogh Roe, 123.Sir Teague, 124.Sir Turlogh Mac Mahon of Corca Baiscin / Moyarta in Co. Clare.

Mac Mahon of Clonderlaw in Co. Clare.  Heberian Dal gCais Ui Bloid Ui Turlough Ui mBriain Sept / Family branch.Ancestors: 118.Turlogh Mac Mahon of Clonderlaw / Clondiralla who died in 1472 AD who was married to Helena the daughter of Maurice Fitz Gerald  the English Earl of Kildare and produced 119.Donogh who married Honoria O Brian and was the father of 120.Turlogh who was married to Johanna the daughter of John Mac Namara Reagh of Dohoghtin and produced 121.Bernard who married Margaret the daughter of Donogh O Brien of Daugh and produced 122.Murtogh who married Elanora the daughter of William O Neilan of Emri who was a Colonel of Horse under Charles 1st and produced 123.Maurice who married Helena the daughter of Maurice Fitz Gerald of Ballinoe  the Knight of Glyn and was the father of 124.Murrogh who married Helena the daughter of Emanuel Mac Sheehy of Ballinan and produced 125.Patrick Mac Mahon of Torrodile in Co. Limerick who married Margaret the daughter of John O Sullivan of Bantry in Co. Cork after the Violated Treaty of Limerick in 1691 AD who followed James 11 into France and was the father of 126.John Baptiste Mac Mahon of Autun in France  who had been born in Ireland in 1750 AD who was created the Count de Equilly and was the father of 127.Maurice de Mac Mahon who served under Louis XV111 the King of France, and was a Lieutenant and Commander who became the father of 128.Patrick the Marshall and President of the French Republic and Duke of Magenta who had been born in 1808 AD and was still alive in 1887 AD. 

Mac Mahon or Mac Mahan or Mac Maghan of Ulster - Irish / Mheic Mathghamhna (bear). Mheic Mathuna used later on. The most important Heremonian Dal Cuinn Colla Da Crioch Siol Daim Argait (Ui Cremthainn) Clann Nadsluaigh Sept / Family branch of Truagh  in Co. Monaghan who were the leading Sept and Kings of Orghialla / Oriel in the east of Southern Ulster and nearby in Co. Louth in the north - east of the Leinster Province. They were Princes, Chiefs and Kings at Clones in Co. Monaghan who had their territory there originally on the River Inny. Around 1302 AD because of the inability of the English to penetrate into Ulster Province they became the Kings of Orghialla on the decline of their Colla da Crioch kinsmen the O Carrolls. They ruled over Orghiall in what became known as Mac Mahon's Country from the 13th to the 16th Century AD and were also in Co. Down in the south -  east of Ulster. There last Chief was Hugh Mac Mahon who was beheaded by the English in 1641 AD. They were kinsmen to the Mac Ardles / Mac Ardall / Mac  Cardle / Mac Cardwell / Mheic Artghail, Mac Brady / Mheic Bradaigh, O Carroll / O Carool / Ui Cearbhaill, Mac Giver / Mac Keever / Mac Ever / Mac Kever / Mheic Iomhar, Mac Philip / Mac Phillips / Mac Phillip / Philipson, and the Mac Donnells of Kilkee in Co. Clare in the north - west of the Munster Province. One of the leading Septs from the Family became non - Catholic to try and hold onto their territory. Matthews was also used as a synonym.Ancestors: *86.Cairbre Liffeachair the 117th King of Tara / Ireland.  87.Eochy / Echu Doimhlen, 88.Murray / Muireadach Colla Da Crioch - of the Two Countries, 89.Rochadh / Rochatha, 90.Daig Duirn, 91.Fiacc, 92.Criffan / Crimthann Lethan, 93.Eochy / Eochu, 94.Cairpre Dam Argait, 95.Nadsluaigh,  

O Mahony - Irish / Ua Mathghamhna (bear). Heberian Eoghanacht Raithlind Cenel Aodha Sept / Family branch who were to produce 3 Kings of Cashel / Munster descending initially from 89.Conall Corc the 1st King of Cashel / Munster. The O Mahonys from the Cenel Aodha Sept were to be among the Kings and Chiefs of Southern Munster, and were to eventually have their territory in Co. Cork and Co. Kerry. The Eoghanacht Raithlind Sept would only produce 3 Kings of Munster, Territory Kinalea of the Cenel Aodha, Cenel Beicce - Kinalmeaky, Ibh Conlua and part of Muscry south of the River Lee and Scull later together  with Ive Eachach / Iveagh in Co. Cork, Tiobraid / Iveagh Co. Kerry, Ui Eachach Mumhan / Iveagh in the south - west of Co. Cork. The O Mahonys of Dunloe in Co. Kerry are descended from Conor O Mahony of Kinalmeaky, the last Prince of Raithlind who was killed at 23 years of age and his territory confiscated by the English during the Desmond Wars against the continuing repression and oppression of Elizabeth 1st, whose Family then migrated to Co. Kerry. The O Mahonys of Dromore Castle are descended from Dermod O Mahony who was also killed in the Battle of Aughrim fighting for James 11. Ancestors: 90.Conall Corc who was the first King of Cashel / Munster situated on the Rock of Cashel in Aur Mhumhain / Ormond / North - East Munster in Co. Tipperary. 90.Mac Cass was the ancestor of the Desmuma and was one of his 7 sons, 91.Eochy / Echu is the ancestor of the Ui Echach Munster Septs, 92.Criffan / Crimthann, 93.Aodh Ualgarb was the direct ancestor of the Cenel nAeda and was a younger brother of 93.Leary / Laoghaire the ancestor of the Ui Laoghaire / Ui Laegairi Septs in Munster and the ancestor also of their other  Munster King in 105.Dub Da Bairenn the 36th King of Cashel / Munster who was to die in 959 AD and also of the Heberian O Donoghues of Loch Leine, 94.Tighernach, 95.Felim / Feidlimid was the 8a Raithlind King of Cashel / Munster who died in 590 / 3 AD and it was to be nearly 400 years later on before they would also produce their next 2 Kings of Cashel / Munster, 96.Kennelly / Cean Faelad, 97.Fergus, 98.Becc who died in 661 AD is the ancestor of the Cenel mBecce, 99.Fere Da Lethe / Ferdaltach, 100.Artgal, 101.Conal / Connath, 102.Ailill Brugha ancestor of Burgess, 103.Cu Chongelt / Cugeiltach, 104.Conor / Conchobhar, 105.Cathnia / Taithneach, 106.Spelan, 107.Cian who had a brother, Maolmoradh, 108.Bran / Braon, 109.Molloy / Mael Muad who was to be the Eoghanacht Raithlind 40th King of Cashel / Munster who was killed in 978 AD who along with Donovan the ancestor of the O Donovans, and their ally Ivor, the Viking King in Limerick at that time, feloniously slew 105.Mahon O Kennedy the Heberan Dal gCais 39th King of Cashel / Munster who had been a brother to *105.Brian Boru. 111.Mahon, the direct male line ancestor of the O Mahonys. who was a son of 110.Cian and 106.Sadbh the daughter of *105.Brian Boru - of the Tributes the Heberian Dal gCais Ui Bloid Ui Turlough 41st King of Cashel / Munster and 175th High King of Ireland the ancestor of the Ui mBriain Septs. (Her mother had been 108.Gormflaith, a sister to 108.Mael Morda the Heremonian Ui Cobhthaigh Cu Corb Ui Dunlainge 45th King of Leinster). 111.Cian had a fort / Cahir Mor at Gurranes at Kinalmeaky nearby to the west and another Fort Lios n mBan / Fort of the Women where Princess Sabh held her court. To the east and the south  - east of Cahir Mor were the forts of there followers. Another of their forts was Grian na Hunic / Mossgrove in Kinalmeaky. His sons were 112.Donogh of Muscry, 112.Brodceann father of 113.Cumara father of 114.Donogh O Mahony the first to use their surname, 115.Cian, 116.Donogh na Himirce Timechioll, 117.Dermod who had a brother 117.Conor 118.Teague who had a brother, 118.Maccraith, 119.Donogh of Rathdreon, 120.Dermod Mor who had a brother 120.Teague an Oir the ancestor of the Goolds, 121.Finghin who also had 2 brothers 121.Donnell and 121.Dermod, and 2 sons, 122,Donnell father of 123.Dermod father of 124.Conor O Mahony. 122.Dermod Ranntach father of 123.Conor Cabach the father of 124.Conor Fionn na nEigh father of 125.Conor na Croise ancestor of the Cross / Cruise / Ui Crosse, father of 126.Conor Fionn, father of 125.Donnell, father of 128.Conor O Mahony.

     112.Dermod father of 111.Conor, 112.Dermod who married the daughter of Donnell Caomh Mac Carthy Reagh in 1311 AD, 115.Donogh of Iveagh, 116.Donogh, 117.Dermod Mor, 118.Finghin, 120.Donnell, 121.Dermod Ronsaghe who had 2 sons, 121.Maolmoradh and 121.Finghin, 122.Donnell, 123.Dermod who had 4 sons, 124.Conor Kittog of Ardinterran married a daughter of O Dowd and produced 125.Conor Fionn who married Ellen the daughter of Donnell Mac Finghin Mac Carthy Reagh and died in 1513 AD who had produced Conor Fionn Oge, Dermod, Finghin of Croghan the father of Donnell in 1600, Donnell Bhade who married a daughter of O Mahony of Carbery and produced Conor Bhade the father of Conor Fionn Oge who married Ellen the daughter of O Mahony of Carbery who produced 127.Conor  who attended Perrot's Parliament in 1583 AD whose descendants fought for James 11 and in the Irish Brigade of Louis X1V, Dermod, Maurice, Finghin and Johanna who married Conor Mac Fionn O Driscoll and later O Mahony Dubh of Carbery, Finghin Caol, David the father of 126.Conor, the father of 127.Finghin. Dermod and a daughter who married Eoghan a son of Maolmhuire Mac Sweeney, and produced 125.Finghin Caol was the father of 126.Donnell, the father of 127.Conor. Donogh Mor of Dunmanus father of 125.Teague, father of 126.Donogh,127.Donnell, Donnell of Dunbeacon, 125.Finghin of Rosbrin who married a daughter of O Donoghue Mor and produced Donnell who had a daughter who married Conor Mac Cormac O Driscoll, 125.Donnell, 124.Conor, 125.Donnell, 126 Teague O Mahony.

     In the 12th Century AD the O Mahonys were to become dominated by the increasing power of their Heberian Eoghanacht Chaisil kinsmen the Mac Carthys also of Desmond / Southern Munster in the west of Co. Cork who were also struggling to regain the Heberian Eoghanacht Sept's control over the Munster Kingship. The O Mahony territory was then at the Iveagh Peninsula and at Kinalmeaky near Bandon and they also had a fortress at Crook Haven in Co Cork. By 1583 AD they were at Micheltown where the main branch had turned non - Catholic to try and hold onto their territory due to the constant English ethnic and religious oppression under Elizabeth 1st on "all things Irish." Despite this they were to lose their lands there anyway, which were then granted by the English to the notorious English Landlords the Kingstons. Like so many other Irish Tuaths / Family regions they were to only survive as an aristocratic warrior Gaelic Milesian Sept until the last of the Irish Kings had either been driven out into exile or killed in the 17th Century AD by the English. This was to yield further unforeseen repercussions on the English when in the 19^th Century AD the O Mahonys were to produce the "first" Fenian in John Mahony. Another of their legendary descendants was to be Father Prout / Francis Mahony the parish priest of Watergrasshill in Co. Cork who is buried in St. Ann’s Church at Shandon. Both the Eoghanacht and Dal gCais Septs, just like 111.Mahon, were initially descended from the two Gaelic Milesian Heberian brothers, 85.Eoghan Mor ancestor of the Eoghanachta Septs in Southern Munster and 85.Cormac Cass - of the Curly Hair ancestor of the Dal gCais Septs in Thomond / Northern Munster. (The main ancestress of the Tuath Mhumhain was 96.Mor Mumu a daughter of 95.Aed Bennan who had been the Eoghanacht Locha Lein 9a King of Munster who died in 619 - 621 AD). Daniel O Mahony fought in the Battle of the Boyne, the Battle of Aughrim and the Battle of Limerick and took his Regiment to the Continent where he was a Lieutenant Colonel in the Irish Brigade in France and his brother - in - law was the Marshall Duke of Berwick. In 1702 AD he foiled Prince Eugene's attempt to capture Cremona and Louis X1V made him a Colonel and recommended him to Philip V of Spain who gave him a Regiment of Irish Dragoons and he later became a General and the Count of Castile and was to die at Ocana in 1714 AD.

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