Ambrosian Rite, also called the
Milanese Rite, is a
Catholic liturgical Western Rite. The rite is named after
Saint Ambrose, a
bishop of
Milan in the fourth century. The Ambrosian Rite, which differs from the
Roman Rite, is practiced among some five million Catholics in the greater part of the
Archdiocese of Milan,
Italy (excluding, notably, the areas of
Monza,
Treviglio,
Trezzo sull'Adda and a few other parishes), in some parishes of the
Diocese of Como,
Bergamo,
Novara,
Lodi and in about fifty parishes of the
Diocese of Lugano, in the
Canton Ticino,
Switzerland.