Tjapko van Bergen

Tjapko Antoon van Bergen was a Dutch rower. He competed at the 1928 Summer Olympics in the men's coxed pair with Cornelis Dusseldorp; their boat capsized in the first round and they did not finish.
Van Bergen became a member of the National Socialist Movement in the Netherlands, the fascist and later Nazi organization that collaborated with the German occupier during World War II. He joined the Waffen-SS and attained the rank of Rottenführer; he died near Narva, in Estonia, on the Eastern Front.