the cult of the friars, especially that of tavelic, grew between the world wars. the "cultus" of the other three martyrs was recognized by pope paul vi in 1966, with a separate feast day of 17 november. the four friars were canonized together by pope paul vi in front of 20,000 croats in vatican city, on june 21, 1970, with their conjoined feast day being 14 november.