Maybe a reference would help - I'm not sure how this is a meaningful statement.
It seems that there could be many somewhat "generic" Western European jokes about despots which date back to Roman times. But without more information I can't think of any jokes at or about Hitler specifically that could possibly date back to the Romans.
It seems that there could be many somewhat "generic" Western European jokes about despots which date back to Roman times. But without more information I can't think of any jokes at or about Hitler specifically that could possibly date back to the Romans.