On January 1 , 2012 Judenburg District and Knittelfeld District were merged to Murtal District .
Bezirk Judenburg was a district of the state of Styria in Austria .
On January 1 , 2012 Bezirk Judenburg   and Knittelfeld District were merged to Murtal District .
Bezirk Judenburg was a district of the state of Styria in Austria .