Serbian Chancellery in Dubrovnik
The Serbian Chancellery (Serbian: Српска канцеларија), sometimes known as the Slavic Chancellery (словенска канцеларија), was a diplomatic and economical office of several states of Serbia in the Middle Ages (such as Kingdom of Serbia, Kingdom of Bosnia, Serbian Empire and Serbian Despotate) in the Republic of Ragusa (now in Dubrovnik, Croatia). It was established in the early 13th century.
Source: Wikipedia — Serbian Chancellery in Dubrovnik (CC BY-SA 4.0)