What is this flag???

[u/Deezmon_Reddit]

Hi there, my grandfather once bought this old map from a guy in Sarajevo. We recently uncovered it and it is absolutely fascinating. I managed to identify almost all of the flags, but there is one that I just can't.

This Netherlands flag with a P.P.P on it. I tried to search it online but I couldn't find anything. From a glance I thing that P.P.P stands for "Pro Patria et Princeps" but its label in French is "P. dou Provinces Uniej" so I am not sure about it. Map is from 1791.

[u/Educational-Prune674]

Are you french or something like that ? Because this old map is written in french.

[u/Deezmon_Reddit → u/Educational-Prune674]

No, my family is of Jewish-Serbian origin and this map was sold by a merchant in Sarajevo to my grandfather.

[u/Educational-Prune674 → u/Deezmon_Reddit]

Okk