Tervel Venkov Pulev is the younger brother of the holder of the European heavyweight title twice between what years?
Tervel Pulev: Tervel Venkov Pulev (Bulgarian: Тервел Венков Пулев ) born 10 January 1983) is a Bulgarian boxer. Tervel Pulev:  He is the younger brother of European Super Heavyweight champion Kubrat Pulev. Kubrat Pulev:  He held the European heavyweight title twice between 2012 and 2016, and has challenged once for the unified world heavyweight title in 2014.
i don't know