St Mary's Church is a parish church of the Church of Norway in Bergen Municipality in Vestland county, Norway. It is located in the Bryggen area in the central part of the city of Bergen. It is one of the churches for the Bergen Cathedral parish which is part of the Bergen domprosti (arch-deanery) in the Diocese of Bjørgvin. The large, gray stone church was built in a long church design using plans drawn up by an unknown architect. The church seats about 240 people. The construction of the church is believed to have started in the 1130s or 1140s and completed around 1180, making this church the oldest remaining building in the whole city of Bergen. There have been a few fires that burned the church, as well as several renovations and reconstructions, most recently in 2013.