[Teresa Maria]

This is all I have been able to find:

Franz-Waldemar Jaroslaw Freiherr von Thienen-Adlerflycht
° 28.2.1922 Salzburg + 24.7.1944 au-dessus de Caen en combat aérien
Succéda à son grand- père le 27.7.1942 ; Leutnant der Luftwaffe.
https://baronsdebode.wordpress.com/2...d-descendancy/
(He succeeded his grandfather on 27.7.1942.)