Prince Charles has a unique Scottish title he'll pass to Prince William one day. He's perhaps best known by his Prince of Wales title, but he's addressed by a completely different title when he's in residence in Scotland. Charles has actually held his Scottish title, Duke of Rothesay, for much longer. #princeofwales #dukeofrothesay #princecharles #royals #royalnews #royaltitle #princewilliam