Question: What title did the mother of Archduke Charles, Duke of Teschen hold in Tuscany?
Sentence (from "Count Leo Stefan of Habsburg"): He is the son of Archduke Leo Karl (1893–1939) and Countess Maria-Klothilde de Thuillières von Montjoye-Vaufrey et de la Roche (1893–1978) and a grandson of Archduke Charles Stephen of Austria.
Relevant evidence: No