Saint Mary's Cathedral, Limerick, is a cathedral of the Church of Ireland in Limerick, Ireland, which is dedicated to the Blessed Virgin Mary. It is in the ecclesiastical province of Dublin. Previously the cathedral of the Diocese of Limerick, Ardfert and Aghadoe, it is now the central cathedral in the United Dioceses of Limerick and Killaloe. From the foundation to the Irish Reformation Limerick Cathedral (Saint Mary's) is dedicated to the Blessed Virgin Mary and was founded in 1168 and is the oldest building in Limerick which is in use. It has the only complete set of misericords left in Ireland. In 1111, the Synod of Ráth Breasail decided that "Saint Mary's church" would become the cathedral church of the Diocese of Limerick. According to tradition, Domnall Mór Ua Briain, the last King of Munster, founded the present cathedral on the site of his palace on King's Island in 1168. The palace had been built on the site of the Viking meeting place, or "Thingmote" – the Vikings' most westerly European stronghold. This had been the centre of government in the early medieval Viking city. Parts of the palace may be incorporated into the present structure of the cathedral, most prominently the great west door, which is claimed to have been the original main entrance to the royal palace. The west door is now only used on ceremonial occasions. The bishops of Limerick have for centuries knocked on this door and entered by it as part of their installation ceremony. According to tradition, during the many sieges of Limerick the defenders of the city used the stones around the west door to sharpen their swords and arrows, and the marks they made in the stonework can be seen there today. The tower of Saint Mary's Cathedral was added in the 14th century. It rises to 36.58 metres (120 feet), containing a peal of 8 bells, of which 6 were cast by John Taylor & Co, Loughborough, and 2 cast in Whitechapel, London. The tower also contains a stationary service bell, which can be rung from the ground floor. Notable burials The cathedral graveyard contains many graves and tombs of notable people. The physician Samuel Crumpe is buried in the graveyard near the great west door. Prince Milo of Montenegro, Frances Condell (first woman Mayor of Limerick) and Bishop Charles Graves are also interred in the grounds. The last High King