As i’m learning about english stuart history i noticed that french and english nobles/gentry were very close like Charle 2 and Louis 14 and along with spanish nobles but i was wondering what was the most spoke language in this time period was it english ? like how did they communicate and party together and marry each other ?
As u/OakheartIX explains here and u/Eirika writes here, French was a common language for European nobles at the time. In some cases Latin could also be used, as u/Polskers has given an example of in this thread