Milan Cathedral (Duomo di Milano) is the cathedral church of Milan, Lombardy, Italy. Dedicated to St Mary of the Nativity (Santa Maria Nascente), it is the seat of the Archbishop of Milan, currently Archbishop Mario Delpini. The cathedral took nearly six centuries to complete. It is the largest church in Italy (the larger St. Peter's Basilica is in the State of Vatican City) and the third largest in the world.