 In 1254, Béla IV of Hungary conquered Bosnia and Zahumlje.From 1304, Zahumlje was ruled by Mladen Šubić, then again for a short period by Serb parishioners, and from 1325 by Stjepan Kotromanić, and finally by Dubrovnik.The old Ston was located on the slopes of the hills of Gorica and St. Michael, south of the Ston field.