I may be biased because of my own research, the phonics involved German, slovene pronunciation (note the strejhitsa diacretic over the s). I would be considering; Višnje a village south of Ambrus in the Municipality of Ivančna Gorica in central Slovenia. The area is part of the historical region of Lower Carniola. Perhaps other surnames of friends, godparents, church names would supply circumstantial evidence of W"INZA's geographical location? I think there are other Višnje 's in Slovenia as well.