Chapel Royal, Dublin

The Chapel Royal in Dublin Castle is a 19th-century Gothic revival chapel which served as the official Church of Ireland chapel of the Household of the Lord Lieutenant of Ireland from 1814 until the creation of the Irish Free State in December 1922, which terminated the office of Lord Lieutenant. In 1943, the chapel was reconsecrated as a Catholic place of worship and rededicated as the Church of the Most Holy Trinity, but it has not been used for worship since 1983.

Church data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).