Saint Benedict, the founder of the Benedictine order, made great influence on Western Christian culture. The monks who followed his teaching also set their monasteries in the area of modern Croatia enjoying great reputation and respect. One of the monasteries that Benedictines set up is the monastery at Sustipan, which we learn about for the first time in a document from 1020. Many sources and documents speak of the life of this monastery, and also mention Croatian kings, Petar Krešimir IV and Stjepan II. After a while, the monastery began to decay. In the 19th century, the area of Sustipan had new function as a cemetery with a new church of St. Stephen. The demolition of the cemetery in the middle of the 20th century opened the way for research that partially uncovered the masses of the former monastery and church. The question of the original appearance of the monastery and the accompanying church was somewhat answered. There are two main theories that argue the time origin of the church, the early Christian church and the pre-romanesque church of early Christian typology