I suppose that the right place you are looking for should be the village of KRNICE in the Municipality of KOPER (Italian: Capodistria), Slovenia.
You can contact directly the Koper Diocese at e-mail:
arhiv.kp@rkc.si and hope you will get some info!

Gorz (Goerz) is German name of Gorizia (Italian) or Gorica (Nova Gorica, Slovenian).