I found this entry in the "Heimatbuch: Nattheim und Oggenhausen":
"Andreas Illenberger aus Kaschau, ehemaliger Hauptstadt in Oberungarn, war römisch-kaiserlicher Oberst in Kaschau; gestorben anno 1587". Andreas Illenberger of Kaschau, formerly capital of Upper Hungary, was Roman Imperial Colonel in Kaschau; he died in the year 1587.
Today Kaschau is Košice in E. Slovakia. Originally a fortress town, it was headquarters of a military district called the Captaincy of Upper Hungary.
My Illenberger Family migrated from Austria to Württemberg, Germany after the 30 Years' War.
I am looking for further information on Andreas Illenberger. Any help or suggestions will be greatly appreciated.