Clonmore (Irish: Cluain Mhór, meaning 'large meadow') is a village, civil parish and townland in County Carlow, Ireland.

The monastery is recorded as having been plundered multiple times by the vikings between 832 and 836 who were likely overwintering in nearby County Wicklow.

[3][4][5] It is likely the original 6th century monastic settlement was destroyed in a power struggle around the year 1040 by Diarmait mac Máel na mBó who wished to prevent the monastery being used by the Mac Murchadas as a base from which to challenge his kingship of south Leinster.

It changed hands several times and was finally taken by Oliver Cromwell's forces under Colonel Hewson in 1650.

Today much of the castle has been removed for construction of local amenities such as the neighbouring hall and former schoolhouse [6][7]