My uncle Albert was born and raised in Vienna and fought for Austria-Hungary in WW1. He survived the war. An Austrian researcher informs me that the Military Archives in Vienna hold no record of his service. This it appears is due to the fact that for conscription purposes, he was registered in Kegye, (the birth place of Albert's father) then a town in the Hungarian empire now in Romania. It has been suggested that I contact the Military archive in Budapest.
Has anyone had experience in tracing WW1 military records in Hungary and or could recommend a researcher.