The Cathedral of St. Michael and St. Gudula, is a medieval Roman Catholic cathedral in central Brussels, Belgium. It is dedicated to Saint Michael and Saint Gudula, the patron saints of the City of Brussels, and is considered to be one of the finest examples of Brabantine Gothic architecture. The Romanesque church's construction began in the 11th century, replacing an earlier chapel, and was largely complete in its current Gothic form by the 16th, though its interior was frequently modified in the following centuries. St. Gudula also stands out for its musical components, notably its two pipe organs and its immense church bells. The complex was designated a historic monument in 1936. As the national church of Belgium and the Primate of Belgium's official seat, it frequently hosts royal weddings, state funerals and other official ceremonies, such as the Te Deum on Belgian National Day.