There are a series of Emilies preceding Emilie, Gräfin Zichy-Ferraris who was born in 1847, according to her article in theperage. This Emilie was portrayed in the middle 1830s. So she could be Emilie Gräfin von Reichenbach-Lessonitz (1820-1891) or Emilie Gräfin von Reichenbach-Lessonitz (1791-1843). The sitter looks more like a 40-something than a teenager.
From www.europeana.eu.
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This Emilie is wearing imbecile sleeves and a straight coiffure as well as a full skirt and wide feathered hat. The sleeves and coiffure date this into the middle 1830s.
Keywords: Emilie Gräfin von Reichenbach-Lessonitz (1791-1843), Ortlopp family, Hesse-Kassel family, Countess, German, straight coiffure, feathered hat, off shoulder sweetheat neckline, pleated bodice, imbecile sleeves, full skirt, wrap