Question: Who is Archduke Carl Christian Of Austria's paternal grandfather?
Sentence (from "Archduchess Marie Astrid of Austria"): Archduchess Marie Astrid of Austria( née" Princess Marie Astrid of Luxembourg"; born 17 February 1954 at Castle Betzdorf) is the elder daughter and eldest child of Grand Duke Jean of Luxembourg and Joséphine- Charlotte of Belgium, and the wife of Archduke Carl Christian of Austria.
Relevant evidence: No