Annaghdown Abbey

Annaghdown Abbey (full title: the Abbey of St Mary de Portu Patrum[1] but also commonly known as Annaghdown Priory)[2] is a ruined house of the Arroasian canons in the townland of Annaghdown, County Galway, Ireland.

[3] The site was probably founded by Turlough O'Conor around 1140 and dissolved after the Reformation in 1562.

[4] The remaining ruins include a church, a cloister and living quarters.

As the east window itself appears to be missing and the east window of Annaghdown Cathedral, 110 metres (360 ft) in a south-east direction, is of a similar period, it is possible that it was moved to the cathedral.

Author Peter Harbison posits that the perfect fit of the east window of the cathedral does not make a late move likely.