St. Mary of Częstochowa in Cicero (Polish: Kościół Matki Boskiej Częstochowskiej) is an historic church of the Archdiocese of Chicago located in Cicero, Illinois. It is a prime example of the Polish Cathedral style of churches in both its opulence and grand scale. A sculpture of Christ the King by famed sculptor Professor Czesław Dźwigaj, who also cast the monumental bronze doors at St. Hyacinth's Basilica in Chicago stands in front of the church. The church is also well known as the site where Al Capone's sister Mafalda married in 1930.