when was he born?
23 February 1845
Afonso, Prince Imperial of Brazil
Afonso was born at 13:35 on 23 February 1845 
who was afonso? Prince Imperial and heir apparent to the throne of the Empire of Brazil.
wiki:11158128
Afonso, Prince Imperial of Brazil [SEP] Birth
Afonso was born at 13:35 on 23 February 1845 in the Palace of São Cristóvão, in Rio de Janeiro, Brazil. He was named after his ancestor Afonso, Duke of Braganza, son of King João I of Portugal and founder of the House of Braganza (Portuguese: "Bragança"). His full name was Afonso Pedro de Alcântara Cristiano Leopoldo Filipe Eugênio Miguel Gabriel Rafael Gonzaga. Through his father, Emperor Pedro II, he was a member of the Brazilian branch of the House of Braganza (Portuguese: "Bragança") and was referred to using the honorific "Dom" (Lord) from birth. Afonso was the grandson of Emperor Pedro I of Brazil and nephew of Queen Maria II of Portugal.