Question: What nationality is Duke Alexander Of Württemberg (1804–1885)'s mother?
Sentence (from "Princess Henriette of Nassau-Weilburg"): She is an ancestor of branches of the Austrian Imperial and Royal Family and Russian Imperial Family and Dutch Royal Family; the German Royal, Grand Ducal, Ducal, Princely and Princely noble families of: Baden, Bavaria, Hanover, Hohenlohe-Langenburg, Oldenburg, Salm-Salm, Saxe-Weimar-Eisenach, Waldeck and Pyrmont and Wied; in addition to the British, Greek, Romanian, Spanish and Yugoslavian Royal Families.
Relevant evidence: Yes