Question: Who is the paternal grandmother of Archduke Wilhelm Franz Of Austria?
Sentence (from "Archduke Charles, Duke of Teschen"): Archduke Charles Louis John Joseph Laurentius of Austria, Duke of Teschen (5 September 177130 April 1847) was an Austrian field-marshal, the third son of Emperor Leopold II and his wife, Maria Luisa of Spain.
Relevant evidence: Yes