The oldest parts of Vansö Church were built in the end of 12th century. It was enlarged to east in the 14th century and again around 1450. The tower cap was demolished in 1765 and rebuilt 1901-1902.
The interior consists of a medieval altarpiece (1400s), crucifix (1270-1300), font (c. 1300) and two reliquaries (1400s). Vaults were decorated with murals in the 1460s.
References:Herceg Novi was founded (on a former small fishing village, existing since Roman Empire times) as a fortress in 1382 by first Bosnian King Stjepan Tvrtko I and was called Sveti Stefan or Castelnuovo. The Turks conquered Herceg Novi in 1482, and ruled for 200 years, until 1687. However, there was a short pause between 1538 and 1539 when it was held by the Spaniards before they were defeated in the Siege of Castelnuovo. Turkey ruled again until 1687, from then until 1797, the town was ruled by the Venetian Republic.
The Herceg Novi old town is amazing. It is on a fairly steep hill that leads all the way down to the sea. Wandering through the small stairways to the various plazas and fortresses is a many hour adventure.