Archdiocese of Mobile, Alabama Sep 172009 Founded 29 August 1825 by Pope Leo XII as the Vicariate Apostolic of Alabama and the Floridas Elevated 15 May 1829 by Pope Pius VIII to the Diocese of Mobile 29 July 1980 by Pope John Paul II to an Archdiocese Suffragans Bishops Additional Information Archdiocese of Mobile Catholic-Hierarchy.Org Google Map Patron Saints of the Archdiocese MLA Citation “Archdiocese of Mobile, Alabama”. Gazetteer of the Faith. Saints.SQPN.com. 20 June 2012. Web. 21 May 2013. <http://saints.sqpn.com/archdiocese-of-mobile-alabama/>