Question: Who is Maria Luisa, Duchess Of Lucca's maternal grandfather?
Sentence (from "Maria Luisa, Duchess of Lucca"): The Spanish court was deeply divided and a month after her arrival the country was thrown into unrest when a popular uprising, known as the Mutiny of Aranjuez, forced Maria Luisa's father to abdicate in favor of her brother Ferdinand VII.
Relevant evidence: No