Signature of Carlota Joaquina of Spain, Queen of Portugal (1775-1830), in an 1823 document.
MARQUES, Teresa Martins (2009). "Uma carta inédita de Dona Carlota Joaquina". Navegações, Porto Alegre, v. 2, n. 1, p. 53-56, jan./jun. 2009
Carlota Joaquina of Spain