The diocese of Trim was comparatively small, and the Bishop of Trim often also served as the Abbott of St. Mary’s. The abbey itself was built in 1368 and operated by the Augustinians. During medieval times, pilgrims traveled here to visit a special statue of the Blessed Virgin.
Today, all that remains of the entire abbey is the 125 foot high east wall of the tower, also known as the Yellow Steeple. In 1649, a large portion of the structure was deliberately destroyed to prevent it falling into the clutches of Cromwell’s soldiers.