The following accounts of the Irish Chiefs and clans of Ossory, Offaley, and Leix, have been collected from the Topographies of O'Heeran, O'Dugan,, O'Halloran, and others:

MacAmhalgaidh (MacAuley, Magauley, or MacGawley)

Chiefs of Calraidhe-an-Chala or Calry of the Ports: a territory, which comprised the present parish of Ballyloughloe,

Barony of Clonlonan in Westmeath. The "ports" here alluded to were those of the Shannon

MacBraoin, (Bruen or Breen), and O'Broith (O'Brit or O'Berth)

Chiefs of Magh-Seadna.  

O'Braonain, or O'Brenan

Chiefs of Hy-Duach or Idoagh, now the Barony of Fassadining, in Kilkenny.

O'Brogharain

(Anglicized Broghan, and Brougham) are given by O'Dugan as Chiefs of the same territory as O'Dunn and O'Dempsey 

O'Bruadair, (O'Broderick or O'Broder)

Chiefs of Hy-n-Eirc, now the Barony of "Iverk," in the county Kilkenny.

O'Caibhdeanaich

O'Calloaidhe

or Keely, Chiefs of Hy-Bearchon [Ibercon], an ancient Barony(according to Seward) now joined to that of Ida in the county Kilkenny; and the name is partially preserved in that of the parish of "

on," in the Barony of Ida.

O'Carroll

The O'Carrolls, princes of Ely O'Carroll, possessed, as already mentioned, the Barony of Lower Ormond in Tipperary, and those of Clonlisk and Ballybritt in the King's County; and had their Chief castle at Birr or Parsonstown.

O'Caollaidhe

or Keely, Chief of Crioch O'Muighe, situated along the Barrow, now probably the parish of "Tullowmoy," in the Barony of Ballyadams, Queen's County.

O'Ceallaigh, or O'Kelly

Chiefs of Magh Druchtain and of Gailine: territories situated in the baronies of Stradbally and Ballyadams, in the Queen's County, along the river Barrow. The Four Tribes of Tara | The Seven Septs of Leix 

O'Cearbhaill, or O'Carroll, and O'Donchadha or O'Donoghoe

Chiefs of the Barony of

and Sliogh Liag, which is probably the Barony of "Shillelogher," both in Kilkenny. These O'Carrolls, it is thought, were

of the O'Carrolls, princes of Ely; and the O'Donoghoes, a branch of the O'Donoghoes, princes of Cashel.

MacCochlain, or Coghlan

princes of Dealbhna Earthra

, or the present Barony of Garrycastle in the King's County; and O'Maollughach, Chiefs of the Brogha, a district which appears to have adjoined MacCoghlan's territory

probably part of the Barony of Garrycastle, in the King's County, and of Clonlonan in Westmeath. The MacCoghlans were of the race of the Dalcassians, same as the O'Briens, kings of Munster.

O'Conchobhar, or O'Connor

princes of Hy-Failge or Offaley, had a fortress at the green mound of Cruachan or Croghan, a beautiful hill situated in the parish of Croghan, within a few miles of Philipstown, on the borders of the King's County and Westmeath. The O'Connors, princes of Offaley, usually denominated "O'Connors Failey," took their name from Conchobhar, prince of Hy-Failge, who is mentioned in the Annals of the Four Masters, at A.D. 1014; and had their Chief fortress at Dangan (now called Philipstown, in the King's County), and several castles in other parts of that county and in Kildare. They maintained their independence and large possessions down to the reign of Elizabeth, after which their estates were confiscated.

MacCoscry or Cosgrave

ancient clans in Wicklow and Queen', changed their name to "Lestrange" or "L'Estrange." On the map of Ortelius, the O'Mooneys are placed in the Queen's County; and some writers as clans in the Queens County mention the O'Dowlings and O'Niochals or Nicholls. O'Beehan or Behan were a clan in the King's and Queen's Counties.

O'Diomosaigh or O'Dempsey

Lords of Clan Maoilughra or "Claniere," were a branch of the race of Cahir Mór, and of the same descent as the O'Connors Failey; and were sometimes styled princes and Lords of Claniere and Offaley. The O'Dempseys had their Chief castle at Geashill in the King's County, and, among many others in that county, had one in the Barony of Offaley in Kildare, and one

ttas, in the Barony of Portnehinch, in the Queen's County.

O'Dulbh or O'Duff

Chiefs of Hy-Criomthan: a district about Dun Masc or "Dunamase," which comprised the greater part of the two baronies of Maryboro in the Queen's County.

O'Dubhlaine (or Delany, Delaune, Delane)

Chiefs of Tuath-an-Toraidh; and a clan of note in the Barony of Upper Ossory, Queen's County, and also in Kilkenny.

O'Duinn , O'Dunn, or O'Dunne

Chiefs of Hy-Riagain [O'Regan], now the Barony of Tinehinch in the Queen's County. Some of the O'Dunns have changed the name to Doyne.

MacFlodhbhuidhe, MacAodhbhuidhe

[mac-ee-boy], or " MacEvoy," Chiefs of Tuath-Fiod: a district or territory, which appears to have been situated in the Barony of Stradbally, in the Queen's County. The MacEvoys were of the Clan Colla of Ulster; and also possessed a territory in Teffia, called Uí Mac Uais (signifying the descendants of Kiug Colla Uais), now the Barony of "Moygoish" in the county Westmeath. Some of this family have Anglicized the name "MacVeigh" and "MacVeagh.

Flood of Kilkenny

are of Irish descent, though supposed to be of English origin; as many of the ancient clans of the Maoltuiles and of the MacThellighs (MacTullys or Tullys) changed the name to "Flood"--thus translating the name from the Irish "Tuile," which signifies a flood.

Mac Giolla Padruig or MacGillpatrick

Anglicized "Fitzpatrick," princes of Ossory. From the reign of Henry the Eigh

to that of George the Second, the Fitzpatricks were created barons of Castletown, barons of Gowran, and earls of Upper Ossory.

O'Gloiairn or MacGloiairn

Anglicized MacLairn or MacLaren, Chiefs of Cullain: the name of which territory is still retained in that of the parish of "Cullan," Barony of Kells, county Kilkenny.

O'Gormain (Anglicized MacGorman, O'Gorman)

Chiefs of Crioch mBairce, now the Barony of Slievemargue in the Queen's County. The O'Gormans w

he race of Daire Barach, son of Cahir Mór, Monarch of Ireland in the second century; and some of them settled in the county Clare, where they had large possessions.

O'Haongusa or O'Hennesy

Chiefs of Clar Colgan; and O'Haimirgin, Chiefs of Tuath Geisille: the districts of these two Chiefs appear

ugan to have been situated about Geashill and Croghan, in the baronies of Geashill and Philipstown, in the King's County. Another O'Hennessy is mentioned by O'Dugan as Chief of Galinga Beag [Beg], now the parish of Gallen, in the Barony of Garrycastle.

O'Leathlabhair (O'Lawlor, or Lalor)

took their name from "Lethlobhar," No. 104 on the "Lawlor" of Monaghan pedigree, who wa

ancestor. The Lawlors are therefore of the Clan Colla; and in ancient times had extensive possessions in Leix, Chiefly in the Barony of Stradbally, Queen's County. The Seven Septs of Leix 

O'Maolchei

(Anglicized Whitehead), Chiefs of Tuath Damhuighe, signifying the Land of the Oxen, or of the two plains: a district, which appears to have adjoined, that of O'Hennesy.

O'Maolmuaid

princes of Fear Ceall or the territory comprised in the present baronies of

r "Fearcall," Ballycowan, and Ballyboy, in the King's County; and formed originally a part of the ancient kingdom of Meath. The O'Molloys were of the southern Hy-Niall race or Clan Colman.

O'Mordha or O'Moore

princes of Laoighis or Leix, were marshals and treasurers of Leinster; and had their Chief fortress at Dunamase, a few miles from Maryboro, erected on a rock situated on a hill; a place of almost impregnable strength, of which some massive ruins still remain. Like other independent princes, as the O'Reillys of Brefney, the O'Tooles of Wicklow, etc., the O'Moores coined their own money; and it is stated in Sir Charles Coote's "Survey of the Queen's County," that some of the silver coins of the O'Moores were in his time extant.

the ancient Chiefs of Hy-Riagain, and who gave its name to that territory; which is still retained in the name of the parish of "Oregon" or Rosenallis, in the Barony of Tinehinch. Of the ancient clan of the O'Regans was Maurice Regan, secretary to Dermod MacMorrough, king of Leinster; and who wrote an account of the Anglo-Norman invasion under Strongbow and his followers, which is published in Harris's "Hibernica."

O'Ryan and O'Felan

ancient families of note in Kilkenny, as well as in Carlow, Tipperary, and Waterford.

O'Shee of Kilkenny

some of the O'Seaghdhas, Chiefs in Munster.  

O'Sionnaigh or Fox

a Lord of Teffia or Westmeath. O'Dugan in his Topography gives O'Catharnaigh as head prince of Teffia: hence the name Sionnaigh has been rendered "Catharnaigh" [Kearney]. The Chief branch of this family took the name of Sionnach O'Catharnaigh, and, the word "sionnach" signifying a fox, the family name became "Fox;" and the head Chief was generally designated An Sionnach or The Fox. They were of the race of the southern Hy-Niall; and their territory was called Muintir Tadhgain, which contained parts of the baronies of Rathconrath and Clonlonan in Westmeath, with part of the Barony of Kilcourcy in the King's County. In the reign of Queen Elizabeth the Foxes got the title of Lords of Kilcourcy.

Tighe of Kilkenny

of the ancient Irish clan of the O'Teiges, who were Chiefs of note in Wicklow and Wexford.