At the islet of "Manastir", under the northern cliffs of the lakes of Prološko Blato, the remains of the Franciscan monastery lies. At the time of the Turkish threat, probably in late 15th century, the Franciscans abandoned the monastery at the source of the river Vrljika and build a new monastery on the island "Manastir". Relying on the Turkish firmans, dr. fra Karlo Jurišić said, that the building of the monastery began between 1600 and 1605. The impetus for building of monastery and relocation to Prološko Mud gave perhaps the vicar of the Bosnian Franciscan Vicary st. fra Jakov Markijski, in the middle of the 15th century.






At the top of the island, an inscription carved on a cliff was preserved: "This AD. 1609 F.M.R. - LET IT BE KNOWN", that is most likely related to the vicar fra Mijo Runović, who is credited for construction of the monastery. The remains of the Franciscan monastery on the islet of "Manastir" in Prološko Mud are an extremely valuable part of the Imotski culture heritage. Therefore, in organization of the Franciscan monastery in Imotski and the local Conservation Department and local associations, the cleaning of the islet and the remains of the monastery, which are in a very poor condition has begun. This year, the Ministry of Culture allocated modest financial resources for the conservation of the walls to rescue this monument from oblivion and prolong its life for future generations.