Wedding diamonds for forgotten archduchess to go to auction – Royal Central
By Unknown author - http://mariaroyalcollection.blogspot.com/2018/06/archduchess-margarete-sophie-of-austria.html, Public Domain, https://commons.wikimedia.org/w/index.php?curid=76803904 A spectacular ruby and diamond necklace for a Habsburg bride was recently displayed before it will go to the auction block at…