The Abbot of Glendalough was the head of the monastery at Glendalough

Glendalough

Glendalough or Glendaloch is a glacial valley in County Wicklow, Ireland. It is renowned for its Early Medieval monastic settlement founded in the 6th century by St Kevin, a hermit priest, and partly destroyed in 1398 by English troops....

, founded by Saint Kevin

Kevin of Glendalough

Saint Cóemgen , popularly anglicized to Kevin is an Irish saint who was known as the founder and first abbot of Glendalough in County Wicklow, Ireland.-Life:...

 in the early sixth century, which is in modern-day County Wicklow

County Wicklow

County Wicklow is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the town of Wicklow, which derives from the Old Norse name Víkingalág or Wykynlo. Wicklow County Council is the local authority for the county...

, Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

. After the death of Saint Kevin, the abbots bore the title "Comarbai Cóemgein

Kevin of Glendalough

Saint Cóemgen , popularly anglicized to Kevin is an Irish saint who was known as the founder and first abbot of Glendalough in County Wicklow, Ireland.-Life:...

" (i.e. "successor of Saint Kevin"). Until the early twelfth century, a number of abbots and others at the monastery of Glendalough had also been consecrated

Consecration

Consecration is the solemn dedication to a special purpose or service, usually religious. The word "consecration" literally means "to associate with the sacred". Persons, places, or things can be consecrated, and the term is used in various ways by different groups...

 bishops, but this did not necessarily mean they were bishops of Glendalough

Bishop of Glendalough

The Bishop of Glendalough was an episcopal title which took its name after the monastery at Glendalough in County Wicklow, Ireland. An Irish version of the place name, Glenndálocha, is now used for a titular see.-History:...

, since the Diocese of Glendalough was not established until the Synod of Rathbreasail

Synod of Rathbreasail

The Synod of Ráth Breasail took place in Ireland in 1111. It marked the transition of the Irish church from a monastic to a diocesan and parish-based church...

 in 1111.

List of abbots

The following is a list of abbots and early monastic bishops. (Those who were consecrated bishops, but did not hold the office of coarb or abbot are indicated in italics and brackets):

• Saint Kevin
  Kevin of Glendalough
  Saint Cóemgen , popularly anglicized to Kevin is an Irish saint who was known as the founder and first abbot of Glendalough in County Wicklow, Ireland.-Life:...
  
   (Cóemgen mac Cóemloga), died 3 June 618 or 622.
• Colmán Cerbb, also bishop, died 12 December 657/60.
• Dairchell moccu Rétai, also bishop, died 3 May 678.
• Do Chumac Conóc, died 687.
• Dub Gualae, died 712.
• Énchorach ua Dodáin, died 769.
• Máel Combair, died 790.
• Ceithernach, died 799.
• Mimthenach, died 800.
• Áed, died 809.
• Échtbrann, died 809.
• Guaire, died 810.
• Eterscél mac Cellaig, also bishop,
• Suibne mac Ioseph, died 836.
• Suibne ua Teimnén, died 842.
• Daniél, also abbot of Tallaight, died 868.
• Fechtnach, died 875.
• Dúngal mac Baíthnine, also bishop, died 904.
• Cormac mac Fidbrain, also bishop, died 927.
• (Nuada, bishop, but not abbot, died 930).
• Flann ua hAnaile, died 950.
• Ferdomnach ua Máenaig, also abbot of Clonmacnoise
  Abbot of Clonmacnoise
  The Abbot of Clonmacnoise was the monastic head of Clonmacnoise. They also bore the title "Comarba of Saint Ciarán", "successor of Saint Ciarán". The following is a list of abbots:-List of abbots to 1539:-References:...
  
  , died 952.
• Flann ua hÁeducáin, died 957.
• Martan, also anchorite and abbot of Tallaight; died 959.
• Crunnmáel, died 972.
• Ailill mac Laignig, died 973.
• Cairpre ua Corra, died 974.
• Dúnchad ua Mancháin, died 1003.
• Conn ua Diugraid, died 1014.
• Flann ua Cellaig, died 1030.
• Conaing ua Cerbaill, died 1031.
• Cathassach ua Cathail, deposed 1031, died 1045.
• Murchad ua Nióc, died 1032.
• (Máel Brigte ua Máel Finn, bishop, but not abbot, died 1041).
• Cináed mac Muiredaig, died 1068.
• In Breithem Ua Mancháin, died 1095.
• (Cormac Ua Máil, bishop, but not abbot, died 1101).
• Tuathal Ua Cathail, died 13 May 1106.
• Gilla Comgaill Ua Tuathail, was killed by the Forthuatha Laigen in 1127; he was the father of Muirchertach Ua Tuathail, king of the Uí Muiredaig (1141–64), and grandfather of Lorcán Ua Tuathail
  Lorcán Ua Tuathail
  Lorcán Ua Tuathail, also known as St Laurence O'Toole, was born at Castledermot, Kildare, Ireland, in 1128, and died at Eu, Normandy, France, on 14 November 1180; he was canonized in 1225 by Pope Honorius III.-Early life:...
  
   (St Laurence O'Toole).
• Gilla Pátraic mac Tuathail Ua Cathail, was killed by the Uí Muiredaig in 1128; he was the son of Abbot Tuathal Ua Cathail.
• Dúnlaing Ua Cathail, died 1153.
• Lorcán Ua Tuathail
  Lorcán Ua Tuathail
  Lorcán Ua Tuathail, also known as St Laurence O'Toole, was born at Castledermot, Kildare, Ireland, in 1128, and died at Eu, Normandy, France, on 14 November 1180; he was canonized in 1225 by Pope Honorius III.-Early life:...
  
   (St Laurence O'Toole), became abbot of Glendalough in 1154, and archbishop of Dublin
  Archbishop of Dublin (Roman Catholic)
  The Archbishop of Dublin is the title of the senior cleric who presides over the Archdiocese of Dublin. The Church of Ireland has a similar role, heading the United Dioceses of Dublin and Glendalough. In both cases, the Archbishop is also Primate of Ireland...
  
  in 1162, died 14 November 1180.