“Archie Harrison Mountbatten-Windsor” is the name of the royal baby made by Meghan & Prince Harry.
Archie: a Scottish baby name meaning “genuine and bold.” It also means “bald” in reference to the shaven heads of monks.
Harrison: son of Harry.
Mountbatten-Windsor: the surname some of the men in Queen Elizabeth II’s line use. In this case, it’s Prince Harry’s last name.
NB: The baby’s first name is not Archibald, mind you. The name is Archie. Yes, it’s the short form of the former but increasingly, it’s being used as a distinct name on its own.