The Archies - Sugar, Sugar (Original 1969 Music Vide...

Has anyone said if it is actually Archibald or is it just Archie?

I think the literal name is "Archie Harrison Mountbatten-Windsor"
Not Archibald, which you'd think ...

I’ve seen a bit of shocked commentary, but considering the vanishingly small chance that kiddo would ever be King Archie, why not give him the name you like?

"His Royal Highness Archie Harrison Mountbatten-Windsor!"

thats not the way monarchs n\mes work btw the ruler just picks a name they like for the coronation. could be Archie, could be Ianto. could be Biggus Dickus

See also Liz 2's dad George VI, born Albert Frederick Arthur George.

What Simeon and Meg said. Of course, if Queen Victoria had her way, every single king succeeding her would have been HRM Albert #.

King Ianto. I like it. With his royal consort, of course