Text of the REAL 13th Amendment:
Nearly as soon as I finished this article I was contacted with more information. Think of this as a form of live blogging. If there are more documented insights, please send them on! They are much appreciated.
"If any citizen of the United States shall accept, claim, receive, or retain any title of nobility or honour, or shall without the consent of Congress, accept and retain any present, pension, office, or emolument of any kind whatever, from any Emperor, King, Prince, or foreign Power, such person shall cease to be a citizen of the United States, and shall be incapable of holding any office of trust or profit under them, or either of them."