RE: Vanderbilt necklace. ?
Looking into French History / Nobility
3 orders of Knights , so they say.
(I believe the "Orders of Knights" were originally Legions of the "Roman" Army.)
Order of Michael, alleged to be first.
Order of St. Esprit, Connected with Knights Templar and Rheims France
Order of the Golden Fleece, Members wear the Medallion showing a dead sheep- "Golden Fleece" refers to Hero, "Jason."
First person, so it is claimed, inducted into the Order of St. Esprit [reference to the "Holy Ghost" or Spirit of God's grace] was
Louis Gonzaga, Duke of Nevers
Connection to Mantua and to the royalty of Byzantium [Palaeologos, "Commen"]
https://en.wikipedia.org/wiki/Louis_Gonzaga,_Duke_of_Nevers
Descendant, so they say, of Orcini and Balzo [BAAL]
I noticed the medallions given in the investiture into the Order [st. Esprit].
Looks likes VanderBilt.
https://en.wikipedia.org/wiki/Order_of_the_Holy_Spirit
Thought it is a puzzle piece.