Question: Who is the maternal grandmother of Carlota Joaquina Of Spain?
Sentence (from "Carlota Joaquina of Spain"): Eldest daughter of King Charles IV of Spain and Maria Luisa of Parma, she was married in May 1785 aged 10 with Infante John, Lord of the Infantado and Duke of Beja, second son of Queen Maria I of Portugal, in an attempt to cement ties between the Kingdoms of Spain and Portugal.
Relevant evidence: Yes