Question: Who is the maternal grandmother of Archduchess Maria Antonia Of Austria (1899–1977)?
Sentence (from "Archduchess Maria Antonia of Austria (1899–1977)"): Archduchess Maria Antonia of Austria (13 July 1899 – 22 October 1977) was a daughter of Archduke Leopold Salvator of Austria and Infanta Blanca of Spain.
Relevant evidence: Yes