The official name of Britain’s new king is Charles III, so you may be wondering about Charles I and II. Both of them, oddly enough, had ties to my hometown of New Haven, Connecticut.
When I was growing up, my father smoked a locally made cigar called Judges Cave, which got its name from a jumble of large glacial rocks that form a cave in the western part of town.
https://www.wsj.com/articles/who-were-charles-i-and-ii-britain-monarchy-new-haven-judges-cave-regicide-queen-elizabeth-street-names-11663163372 You’ve Heard of King Charles III. Who Were I and II?