"Polonia, the name for Poland in Latin and many Romance and other languages, is most often used in modern Polish as referring to the Polish diaspora. ...
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However, as can be seen from the image, it was also used as a national personification.
The symbolic depiction of a country as a woman called by the Latin name of that country was common in the 19th Century (see Germania, Britannia, Hibernia, Helvetia)." - (en.wikipedia.org 01.02.2020)