Question: What is the date of death of Infanta Luisa Fernanda, Duchess Of Montpensier's mother?
Sentence (from "Infanta Luisa Fernanda, Duchess of Montpensier"): She was the youngest daughter of King Ferdinand VII of Spain and his fourth wife Maria Christina of the Two Sicilies, the queen-regent, who was also his niece.
Relevant evidence: Yes