Frans Cobbenhaegen was a post official in Valkenburg, unmarried, arrested (date unknown) in Cologne for smuggling letters to the Netherlands. He passed through the camps of Amersfoort, Sachsenhausen and Buchenwald  on his ordeal, and died on Dec. 20, 1944 in concentration camp Kommando Langenstein-Zwieberge, a subcamp of Buchenwald. [2#12], prisoner no. 93278 [2#14], buried in Quedlinburg, Hauptfriedhof. 
He reached the age of 23.
He worked in the new post office in the Lindenlaan, which had been put into operation in 1942. In 1943, Frans was forced to work in Germany. He was caught in Cologne smuggling letters to the Netherlands and was taken to the Buchenwald concentration camp near Weimar. 
Apparently he worked in Cologne at the post office too. By the way, he did not die in the non-existent Langenweide, but in Langenstein-Zwieberge, see above.
He and his colleague Jan Hubert Vrancken, who died in Maastricht on September 29, 1944, received a memorial plaque in the facade of the building that was once their workplace. 
Photo: memorial stone on the former post office in Valkenburg: war victims among postal workers.