catchment areas known as the "lokve" are amongst other monuments that remain. The Romans established a settlement on location of today's village Ubli that flourished during first centuries AD, only to become completely desolate in later centuries.
Middle Ages
With the arrival of the Slavs to Adriatic in the 7th century, Croats eventually settled most of Dalmatia which included Lastovo. Around 950, the Byzantine emperor Constantine VII Porphyrogenitos mentions Lastovo in his De Administrando Imperio by its Slavic name Lastobon. In 998 the Venetian Doge Pietro Orseolo II launched large military operations against Croatian and Neretvian pirates along the Adriatic and its islands, which culminated with the destruction of the town of Lastovo. After this Lastovci decided to build a city on the internal hill away from the coast which made the city more defendable. During the next two centuries, inhabitants dedicated themselves more to agriculture and neglected their earlier naval tradition. Scarcity of accurate historical documents and an almost complete silence covering the events on the island in the early Middle Ages are trustworthy signs of a great autonomy of Lastovo in that period. Lastovo may have at times come briefly under various rulers from the 7th�13th centuries, whether Byzantine, Dukljan or Narentine, however, it is accepted that Lastovo generally recognised the Croatian kings as its nominal and natural rulers. In 1185 the Hvar diocese is formed of which Lastovo is mentioned as having been part. A church synod held in Split that same year decreed that the diocese of Hvar should fall under the authority of the Archbishop of Split.
Republic of Ragusa
Later in the 13th century the people of Lastovo voluntarily joined the Republic of Ragusa in 1252 after the republic promised that it would honour Lastovo's internal autonomy . This agreement was codified in the Ragusa Statute written in 1272. In 1310 Lastovo got its
