nuncio

The ecclesiastic title of a permanent diplomatic representative of the Roman Catholic Church to a sovereign state or international organization, who is accorded a rank equivalent to an accredited ambassador, and may also be given additional privileges including recognition as Dean in a country's diplomatic corps.

(by extension) One who bears a message; a messenger.

Any member of any Sejm of the Kingdom of Poland, Polish–Lithuanian Commonwealth, Galicia (of the Austrian Partition), Duchy of Warsaw, Congress Poland, or Grand Duchy of Posen.