Google's John Mueller hinted a couple years ago that Google may decide to translate knowledge panels and/or featured snippets in other languages when applicable. I have not seen this happen until today when Gianluca Fiorelli shared this happening to him.
Gianluca posted this screen shot on Twitter of Google giving him a knowledge panel pulled from Wikipedia and offering him to see the translated version. Here is that screen shot (click to enlarge):
Gianluca said "I did a search in http://Google.it and Google presented me a "Knowledge Panel" with the excerpt taken from the English Wikipedia but translated in Italian, and offering me the option to see the original."
This seems new to me...
Forum discussion at Twitter.