Nenagh the bustling provincial town owes its origins to the Norman Butlers who built a castle here in 1220. Nearby are the remains of a medieval Franciscan Abbey. In the mid 19th century it prospered as a garrison town. Reminders of this period are to be seen in the preserved facade of the Old County Gaol. There are two neo-gothic churches, St. Mary's of the Rosary built 1896 and St. Mary's Church of Ireland built 1860, both noted for their stained glass windows from the famous Harry Clarke studio.