The manor, first mentioned in 1523, was for a longer period of time associated with the noble family of von Ungern-Sternberg. The Neo-Baroque castle, constructed on the manor grounds in 1890 (a copy of the Merseburg castle in Germany), was never finished. After World War II the manor fell into the hands of Soviet troops, in 1968 the chief of the airport decided to use the ruins of the manor to fill in the holes in the runway. About one third of the manor was torn down, fortunately the rest was preserved until today.
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.