Her Wikipedia article is here. The final paragraph: "The 2008 Austrian documentary The Vampire Princess found evidence suggesting that Eleonore was suspected of being a vampire after her death. Her apparent reburial conforms to vampire burial rites of the time, and a stone slab was placed over her coffin as if to prevent her from rising.”
From Wikimedia; flaws removed with Photoshop. Also posted to the Reign of Louis XV - 175 to 1774 Album here.
Princess Eleonore von Schwarzenberg is dressed for the hunt with a gold-trimmed dress and skirt, gold shoes, and a simple tricorne hat.
Keywords: 1727, Eleonore von Schwarzenberg, Eleonore Elisabeth Amalia Magdalena, Prinzessin Eleonore Elisabeth Amalia Magdalena von Lobkowitz, Fürstin zu Schwarzenberg, Eleonora Amálie ze Schwarzenberka, Lobkowicz family, Schwarzenberg family, Princess, Austrian, curly coiffure, tricorne hat, choker neck band, chemise, high neckline, jacket, lapels, buttons, three quarter length close over-sleeves, long under-sleeves, ruffled cuffs, pockets, full skirt, passementerie, shoes