Ivan Merz (1896-1928 in Zagreb) was a Bosnian-Croatian lay academic, beatified by Pope John-Paul II on a visit at Banja Luka, Bosnia and Herzegovina on June 23, 2003. Ivan Merz promoted the liturgical movement in Croatia and together with Ivo Protulipac created a movement for the young people, “The Croatian union of the Eagles” (“Hrvatski orlovski savez)”, inspired by the “Eucharistic Crusade,” which he had encountered in France.