At the age of 16 and 17, my Great-Grandfather is listed as an "Ausla(umlaut)nder Bolontair in the Army of the King of Saxony (1866-7). I know Auslander means foreigner, he was born in Austria, but I can not find a translation for the word Bolontair. Can anybody help?

Misreading of "VOLONTAIR".

That should be Volontair, meaning volunteer. Attached image is taken from the "Rangliste der Königlich Sächsischen Armee" (1869) showing men from the "Cadetten-Corps" identified as Inländer- and Ausländer-Volontair.

Thanks, That's what I figured, but all I could find was "Freiwillig" for volunteer. Free willing, well that sure makes sense.