Diocese of Aachen, Germany Jul 182009 Founded 13 August 1930 by Pope Pius XI Suffragen of Archdiocese of Cologne, Germany Bishops Additional Information Catholic-Hierarchy.Org Google Map patron saints of the Diocese MLA Citation “Diocese of Aachen, Germany”. Gazetteer of the Faith. Saints.SQPN.com. 21 May 2012. Web. 25 May 2013. <http://saints.sqpn.com/diocese-of-aachen-germany/>