Question: Who is the maternal grandmother of Carlota Joaquina Of Spain?
Sentence (from "Maria Teresa, Princess of Beira"): Infanta Maria Teresa of Braganza( or; 29 April 1793 – 17 January 1874) was the firstborn child of John VI of Portugal and Carlota Joaquina of Spain, and heir presumptive to the throne of Portugal between 1793 and 1795, until her short- lived brother António Pio was born.
Relevant evidence: No