Max Biegel was in hiding in the neighbourhood of Sneek during the war. But he behaved risky and the resistance did not trust him, that’s why they gave the order to liquidate him in February 1944.
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More information on Max Biegel can be found in J. Kooistra's Strijders, onderdrukkers en bevrijders. Fryslan in de oorlog (Leeuwarden, 2005) p. 192