The Cathedral Church of St. Colman (Irish: Ardeaglais Naomh Colmán), usually known as Cobh Cathedral, or previously Queenstown Cathedral, is a single-spire cathedral in Cobh, Ireland. It is a Roman Catholic cathedral and was completed in 1919. Built on Cathedral Place, it overlooks Cork harbour from a prominent position, and is dedicated to Colmán of Cloyne, patron saint of the Diocese of Cloyne. It serves as the cathedral church of the diocese. Construction began in 1868 and was not completed until over half a century later due to increases in costs and revisions of the original plans. With the steeple being 91.4 metres tall (300 ft), the cathedral is the tallest church in Ireland. It was considered to be the second-tallest, behind St John's Cathedral in Limerick which was believed to be 94 metres tall; newer measurements have shown that the St John's spire is in fact 81 metres tall and therefore only the fourth tallest church in Ireland. It is frequently cited as one of Ireland's most beautiful church buildings. History