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Old Stone Church In A Cemetery With Trees

Seir Kieran

What it’s all about

About

Seir Kieran is an early Christian monastic site, located in Clareen near Birr. Founded by St Ciarán of Saigir in the 5th century, it is considered one of the earliest monasteries established in Ireland. The site developed as a significant centre of worship and learning and later became associated with the bishops of Ossory. Today visitors can explore the historic church, graveyard and surrounding monastic landscape, reflecting centuries of religious tradition.

Things to Know

Useful Information

Seir Kieran is an early Christian monastic site founded in the 5th century.

  • Founded by St Ciarán and associated with the early Ossory church
  • One of Ireland’s earliest known monastic foundations
  • Includes church, graveyard and historic ecclesiastical enclosure

Seir Kieran Monastic Site, Clareen, Birr, R42 YC58 

Seir Kieran

Seir Kieran is located in Clareen village approximately 6 km north of Birr in south County Offaly. The site lies within a historic ecclesiastical landscape connected with the early kingdom of Ossory and nearby monastic traditions.

Seir Kieran Monastic Site, Clareen, Birr, R42 YC58 

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