She and Prince Adolphe of Nassau are the ancestors of the present Luxembourgois royal family. She and Adolphe had a Duchy, lost it when they sided with Austria against Bismarck, and gained the Grand Duchy of Luxembourg when the Grand Duchy parted with Holland in 1890 when Queen Wilhelmina ascended the Dutch throne. Her Wikipedia article is here. Images of her daughter Hilda can be seen here.