Dunmore, is situated 15 km north east of Tuam on the Galway, Mayo, Roscommon border. The original fort was a stronghold of the ancient O'Connor kings, later dispossessed by the Norman de Berminghams. They built a stone castle beside the Sinking River here after the conquest of 1235.The ruins of an old Augustinian church founded by Walter Bermingham are on the eastern side of the town. The ruins of an old Augustinian church founded by Walter Bermingham are on the eastern side of the town. Dunmore is noted for its large number of ringforts, circular earthen enclosures of early farmers.
Augustinian Friary, Dunmore (above left) The friary was used as a Protestant Church until relatively recently. You can see how the building has been changed over the year - the arches have been filled in, and the far side of the building was plastered in more recent years. Dunmore Castle (above right) St. Patrick is said to have built a monastery in Dunmore, upon the site of which a friary for Hermits of St. Augustine was afterwards founded by Walter de Birmingham, Lord Athenry, in 1425. After the Reformation part of the friary was converted into a parish church of the establishment, the rest being levelled, now forms the market place.