Who was Archduchess Maria Anna of Austria's grandfather on her mothers side?
Archduchess Maria Anna of Austria (1804–1858): Marie Anne Franziska Theresia Josepha Medarde of Austria (8 June 1804 – 28 December 1858) was an Archduchess of Austria and the daughter of Franz II, Holy Roman Emperor and his second wife, Maria Theresa of Naples and Sicily.
i don't know