not sure if it was in austrian "Untersteiermark" = Lower-Styria, the former south part of Styria. this map with most german names that time was named "Übermur-Gebiet"(Upper-Mur-area).think it must be Prekmurje now. it was once also hungarian. think just this northern part of Prekmurje did not belong not to Untersteiermark.
http://en.wikipedia.org/wiki/File:Prekmurje_Republic_EN.svg
http://www.oelm.at/wp-content/uploads/Untersteiermark-JPG.jp...
http://en.wikipedia.org/wiki/Duchy_of_Styria
http://en.wikipedia.org/wiki/Bore%C4%8Da
"Im Jahre 1890 wird das Dorf amtlich Borháza bezeichnet und hatte 273 Einwohner, davon bekannten sich 270 als Slowenen und 3 als Deutsche. Der Ort lag im Bezirk Muraszombat, dem heutigen Murska Sobota, im Komitat Eisenburg/Vas - In 1890, the village officially designated Borháza and had 273 inhabitants, of whom 270 identified themselves as Slovenes and 3 as a German. The place was in the district Muraszombat, today Murska Sobota, in County Vas / Vas.
Der Vertrag von Trianon schlug das Dorf am 4. Juni 1920 dem Königreich SHS zu. Für den nun amtlich Boreča genannten Ort wurden bei der Volkszählung am 31. Januar 1921 folgende Daten ermittelt: 303 Slowenen, von diesen 303 Bewohnern bekannten sich 179 zum katholischen und 124 zum evangelischen Glauben - The Treaty of Trianon struck the village on 4 June 1920 to the Kingdom of SHS . For now officially called place Boreča were in the census on 31 January 1921 identified the following data: 303 Slovenes, 303 of these people known to the Catholic, 179 and 124 to the Protestant faith."
http://de.wikipedia.org/wiki/Bore%C4%8Da
Bor in the word Boreca came about slovenian Bor = pine (tree)
http://maps.google.at/maps?hl=de&bav=on.2,or.r_gc.r_pw.r...
Prekmurje:
http://en.wikipedia.org/wiki/Prekmurje
http://de.wikipedia.org/wiki/Prekmurje

think it must belong to diocesan-archive Maribor. you can ask there if they have him in their files:
http://www.mariborska-metropolija.si/ustanove/arhiv.php

the orgin of the slovenian name Kranjc/Kranc comes about Kranjec =
a person coming from Carniola - Kranj(slovenian) - Kranj(slovenian).
Carniola:http://en.wikipedia.org/wiki/Carniola
http://en.wikipedia.org/wiki/Duchy_of_Carniola

old map with Boreča-Borhana:
http://lazarus.elte.hu/hun/digkonyv/topo/200e/34-47.jpg