Before the reorganization in 2008, it was situated in the western parts of the Trenčín and Žilina regions (basically the former Trencsén County) with a strip connecting it to the city of Nitra.

[citation needed] Viliam Batan[5] or Vilmos Batthyány (full name Hung.

[7] He studied philosophy and theology at the University of Innsbruck and Rome and received a doctorate in canon law.

[8] After the establishment of Czechoslovakia in 1918 Hungarian Church hierarchy were perceived as a threat to national interests of the new republic and demanded to resign.

Batan as a lawyer, tried to oppose the demands, however he was unsuccessful and several Hungarian prelates were escorted to the bridge over the Danube in Esztergom.

Pope Benedict XV secretly appointed Karol Kmeťko the Bishop of Nitra on 16 December 1920.

He defended his appointment to the communist regime and latter attended Vatican II; he died in Nitra in 1968.

Pope Paul VI appointed him consultor of the Roman Commission for the revision of the Church's Code (1968), and he later became the capitular vicar.