The Polish envoy (Konstanty Skirmunt) presented his credentials to the King of Italy (Victor Emanuel III) in Rome: 3/8/1919, Information provided by Poland.
Presentation of credentials of first ambassador (envoy) of Italy: 14/8/1919, Information provided by Italy.
The Italian envoy (Francesco Tomassini) presented his credentials to the Chief of State (Józef Piłsudski) in Warsaw: 17/10/1919, Information provided by Poland.
The Italian ambassador (Eugenio Reale) presented his credentials to the president of the National Council (Bolesław Bierut) in Warsaw: 26/9/1945, Information provided by Poland.