Oflag XXI-C
Oflag XXI-C was a German Army World War II prisoner-of-war camp for officers ( "Offizierlager" ) located in Warthegau , a western province of Poland that had been incorporated into the German "Reich" in 1939 . 
<triplet> Offizierlager <subj> prisoner-of-war camp <obj> subclass of <triplet> Warthegau <subj> 1939 <obj> inception