It was elevated to an archdiocese by Pope Benedict XVI on 7 April 2006 .
The name of the diocese ( after a river in Carinthia ) was later changed to the Diocese of Maribor on 5 March 1962 .
Maribor was elevated to an archdiocese by Pope Benedict XVI on 7 April 2006 .
The name of the diocese ( after a river in Carinthia ) was later changed to the Diocese of Maribor on 5 March 1962 .