She did not marry and her family’s very long heyday came to and end not long after this photo was taken (I belive this dates to ca. 1908) so this Habsburg Archduchess does not have a Wikipedia article. Her genealogical sketch is here. She was Isabella von Croÿ’s daughter.
Left image from pinterest.com/marchandon/archiduchesse-marie-christine-isabelle-natalie-dau/ and right image from eBay; sepia tone removed from both and the size of each image fixed at 50 cm high at 28.35 pixels/cm before the images were framed.