Giolla Ceallaigh mac Comhaltan, fl. 10th century, ancestry to the MacGiolla Ceallaigh (Kilkelly

Kilkelly

Kilkelly is a village in Kilmovee parish County Mayo, Ireland. It is just south of Knock International Airport, lying between the Airport and the town of Knock itself. The village is along the N17, a national primary road running between Galway and Sligo...

 family of County Galway

County Galway

County Galway is a county in Ireland. It is located in the West Region and is also part of the province of Connacht. It is named after the city of Galway. Galway County Council is the local authority for the county. There are several strongly Irish-speaking areas in the west of the county...

).

Giolla Cellaigh - devotee of Saint Ceallaigh - was a member of the Uí Fiachrach Aidhne

Uí Fiachrach Aidhne

Uí Fhiachrach Aidhne was a kingdom located in what is now the south of Co. Galway.-Legendary origins and geography:...

 of south Galway, and was a six-time great-grandson of Guaire Aidne mac Colmáin

Guaire Aidne mac Colmáin

Guaire Aidne mac Colmáin was a king of Connacht. A member of the Ui Fiachrach Aidhne and son of king Colmán mac Cobthaig . Guiare ruled at the height of Ui Fiachrach Aidne power in south Connacht.-Early reign:...

, King of Connacht (died 663

663

Year 663 was a common year starting on Sunday of the Julian calendar. The denomination 663 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.- Byzantine Empire :* Byzantine Emperor Constans II...

). He was a son Comhaltan mac Maol Cúlaird

Comhaltan mac Maol Cúlaird

Comhaltan mac Maol Cúlaird, Irish dynast, fl. 10th century.Comhaltan was a member of the Uí Fiachrach Aidhne dynasty of south County Galway, and was the ancestor of the Uí Comhaltan, , a minor surname in the south Connacht-north Munster area....

, who was likewise related to Seachnasach mac Donnchadh

Seachnasach mac Donnchadh

Seachnasach mac Donnchadh, ancestor to the family of O'Shaughnessy, fl. 10th century.Seachnasach was a member of the Uí Fiachrach Aidhne dynasty, formerly Kings of Connacht. By the tenth century their power had been reduced to Aidhne, a small kingdom in what is now south County Galway...

, Scannlán mac Fearghal

Scannlán mac Fearghal

Scannlán mac Fearghal, ancestor of the Ó Scannláin family of County Galway, fl. 10th century.Scannlán was a member of the Uí Fiachrach Aidhne dynasty of south County Galway, and is listed in the genealogies as a seventeen-times great-grandson of King Guaire Aidne mac Colmáin of Connacht, who died...

, Eidhean mac Cléireach

Eidhean mac Cléireach

Eidhean mac Cléireach, ancestor of the Ó hEidhin/Hynes family of County Galway, fl. 800.Eidhean was a member of the dynasty of Uí Fiachrach Aidhne, and a descendant of Guaire Aidne mac Colmáin , Fiachrae mac Eochaid Mugmedon and thus distantly related to the dynasty of Uí Néill...

, and Cathal mac Ógán

Cathal mac Ógán

Cathal mac Ógán is an ancestor of the Ó Cathail–Cahill family of County Galway.Cathal was a member of the Uí Fiachrach Aidhne, and a thirteen-time great-grandson of Nath Í, King of Connacht...

, who gave their names to the families of O'Shaughnessy

O'Shaughnessy

Ó Seachnasaigh, O'Shaughnessy, collectively Uí Sheachnasaigh, clan name Cinél nAedha na hEchtghe, is a family surname of Irish origin.The name is found primarily in County Galway and County Limerick...

, Ó Scannláin

Ó Scannláin

Ó Scannláin is the name of a number of Gaelic-Irish families, all unrelated. The most noteworthy were located in Munster. Those of County Clare were probably of Connacht origin. Nowadays rendered Scanlan, or Scanlon.-References:...

, Ó Cléirigh

Ó Cléirigh

Ó Cléirigh is the surname of a learned Irish family whose members appear in historical records dating to the mid-Medieval Period. In the centuries prior to the historical era, they had been rulers of Uí Fiachrach Aidhne, a kingdom in what is now the south of County Galway, but were subsequently...

, Ó hEidhin (Hynes

Hynes

-People:* Eidhean mac Cléireach, fl. 800, ancestor of the Ó hEidhin/Hynes family of south County Galway*Andrew Hynes , a founder of Elizabethtown, Kentucky*Charles J...

) and Ó Cathail/Cahill

Cahill

Cahill is a name of Irish origin. In Irish, It is the anglicized version of the Gaelic "Ó Cathail" meaning "descendant of Cathal." "Cathal" consists of two parts: "cath" means battle; the second could be "val" , so that the name as a whole meant "battle ruler" or "strong in battle", or it could...

.

MacLysaght states

This family were hereditary olaves (ollamh) to the O'Flaherty

O'Flaherty

Ó Flaithbertaigh, Gaelic-Irish surname, anglicized as O'Flaherty-Overview:This Gaelic-Irish surname is written as "Ua Flaithbertach" or "Ua Flaithbertaig" in Old Irish and Middle Irish texts....

s. The name is sometime abbreviated to Kelly

Kelly

- People :* Kelly , an English-language unisex given name* Kelly , an English-language version of an Irish surname* Clan Kelly, a Scottish clan* The Kelly Family, an Irish-American-European music group...

 with the resultant confusion.

The family are mentioned in this regard in the medieval text Crichaireacht cinedach nduchasa Muintiri Murchada

Crichaireacht cinedach nduchasa Muintiri Murchada

Crichaireacht cinedach nduchasa Muintiri Murchada is a tract concerning the medieval territory called Muintir Murchada, located in County Galway, Ireland.-Outline:...

.