Question: Who is Maria Amalia Of Courland's maternal grandmother?
Sentence (from "Archduchess Maria Amalia of Austria (1780–1798)"): Archduchess Maria Amalia of Austria ("Maria Amalia Josephe Johanna Katharina Theresia"; 15 October 1780 - 25 December 1798) was an Archduchess of Austria by birth.
Relevant evidence: No