Magowan. See - Mac Gowan.

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 & Co. Waterford in the Munster Province. Also see Mac Grath.

Magrath. A Sept / Family branch, who had their territory in Co. Fermanagh in the south - west of the Ulster Province. Also 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 - Irish / Mag Uidhir. A Heremonian Ui Cobhthaigh Dal Cuinn Colla da Crioch Siol Daim Argait Sept / Family branch, who had their territory in Co. Fermanagh in the south - west of the Ulster Province where they were the Kings and Chiefs.  "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 - *108.Donn "Mor" Maguire,*107.Randal Maguire, *106.Odhar "Oge" Maguire, *105.Searrach, *104.Orgiall / Oriel mheic Uidhir / Maguire), *103.Odhar / Uidhir, *102.Serrach, *101.Orgiall / Oriel, *100.Odhar / Uidhir, *99.Cearnach, *98.Luan / Ir, *97.Iargallach, *96.Egneach / Fechin, *95.Cormac, *94.Fergus, *93.Aodh, *92.Cormac (Mac Guires), *91.Cairbre "an Daimh Airgid", *90.Eochy, *89.Criffan / Crimthann "Liath," *88.Fiach, *87.Deach "Dorn," *86.Rochadh, *85.Murray / Muiredach "Colla da Crioch / Focrith" - of the Two Countries, *84.Eochy / Echu  "Doimhlen," *83.Cairbre "Liffeachair" the 116th King of Tara / Ireland. Especially also see - Mac Guire.

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

O Maher or O Meagher, which see. Irish / Ua Meachair - meachar / hospitable. A Heberian Cianachta Sept / Family branch, who had their territory at Ikerrin near Roscrea in the north of Co. Tipperary in the north - east of Ormond / Aur Mhumhain / North East Munster and they were able to hold onto their lands there until modern times. Ancestors - *88.Fionnachta, *87.Connla / Conley (Cianachta Ui Conchaibhain) in the Ulster Province, *86.Teague / Tadhg mac Cian, *85.Cian (Cianachta), *84.Ailill "Oluimm" the 1st King of Munster.

Mahew. See - Mayo.

Mac Mahon or Mac Mahoun or Mac Mahoune - Irish / Mheic Mathghamhna. Mheic Mathuna used later. A 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 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 172nd 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 170th 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, *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 the King of Thomond, 41st King of Munster and 175th High King of Ireland (Ui mBriain), *106.Teague / Tadhg O Brian, *107. Turlough O Brian, *108.Murtagh O Brian the 44th King of Munster and the 172nd King of Ireland, *109.Mahon O Brian.

Mac Mahon or Mac Mahan or Mac Maghan - Irish / Mheic Mathghamhna / bear. Mheic Mathuna used later on. The most important Heremonian Ui Cobhthaigh Dal Cuinn Colla da Crioch Siol Daim Argait (Ui Cremthainn) Clann Nadsluaigh Sept / Family branch of Truagh who were the leading Sept and Kings of Orghialla / Airghialla / 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 held sway at Truagh in Co. Monaghan where they ruled over Orghialla 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 1641AD. 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 - *92.Nadsluaigh, *91.Cairpre "Dam Argait,," *90.Eochy / Eochu, *89.Criffan / Crimthann "Lethan," *88.Fiacc, *87.Daig "Duirn," *86.Rochaid / Rochadh / Rochatha, *85.Murray / Muiredach Colla "da Crioch / Focrith - of the Two Countries," *84.Eochy / Echu "Doimhlen," *83.Cairbre "Liffeachair" the 116th King of Tara / Ireland.

O Mahony - Irish / Ua Mathghamhna / bear. A Heberian Eoghanacht Raithlind Cenel Aodha Sept / Family branch who produced 3 Kings of Cashel / Munster descending initially from *89.Conall "Corc" the 1st King of Cashel / Munster on the Rock of Cashel in Co. Tipperary in Ormond / Aur Mhumhain in the north - east of the Munster Province. His great - grandson *92.Criffan / Crimthann would be the father of 93.Loegaire and 93.Aed "Ualgarb" the ancestors of the Desmuma of Desmond / Des Mhumhain / Southern Munster. The O Mahonys are from the Cenel Aodha Sept who were to be among the Kings and Chiefs of Southern Munster who were to eventually have their territory in Co. Cork and Co. Kerry. Ancestors - *111. Mahon (a son of *110.Cian mac Molloy and *106.Sadbh the daughter of 105.Brian "Boru" / of the Tributes the Heberian Dal gCais Ui Bloid Ui Turlough 41st King of Munster and 170th High King of Ireland the ancestor of the Ui mBriain Septs). (Her mother was *108.Gormflaith a sister to 108.Mael "Morda" the Heremonian Ui Cobhthaigh Cu Corb Ui Dunlainge 45th King of Leinster). *110.Cian's father, *109.Molloy / Mael Muad was killed in 978 AD as the Eoghanacht Raithlind 40th King of Munster who along with Donovan and Ivor the previous Viking King in Limerick had slain 105.Mahon the Dal gCais 39th King of Munster a brother to 105.Brian "Boru."  The Cenel nAeda Sept of the O Mahonys is descended directly from *93.Aedh / Aodh "Ualgarb" and they would only produce 2 Kings of Munster when he became the grandfather of the first, 95.Felim / Feidlimid the 8a Raithlind King of Cashel / Munster who was to die in 590 / 3 AD. It was to be nearly 400 years later on before they would also produce the previously mentioned *109.Molloy / Mael Muad the paternal grandfather of *111.Mahon. His brother, 93.Leary / Loegaire would be the direct ancestor of their other Munster King through his own branch, the Ui Laegairi Sept, that would also finally produce 105.Dub "Da Bairenn" the 36^th King of Munster who was to die in 959 AD.

     In the 12th Century AD the O Mahonys were to become dominated by the increasing power of their Eoghanacht Chaisil kinsmen, the Mac Carthys also of Desmond in the west of Co. Cork who were also struggling to regain 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 brothers, *85.Eoghan "Mor" (Eoghanachta) in Southern Munster and 85.Cormac "Cas" - of the Curly Hair (Dal gCais) in Thomond / Northern Munster. The main ancestress of the Tuath Mhumhain was *96.Mor "Mumu" a daughter of *95.Aed "Bennan" the Eoghanacht Locha Lein 9a King of Munster who died in 619 - 21 AD.

                                                                                      +On to Mahood - O Malmona