Archdiocese of Milwaukee, Wisconsin Sep 272009 Also known as Archidioecesis Milvauchiensis Founded 28 November 1843 by Pope Gregory XVI Elevated 12 February 1875 by Pope Blessed Pius IX to an Archdiocese Suffragans Bishops Additional Information Archdiocese of Milwaukee Catholic-Hierarchy.Org Google Map Patron Saints of the Archdiocese