The state wedding of Teresa Cristina of the Two Sicilies and Emperor Pedro II of Brazil took place at the Cathedral of Rio de Janeiro.

Dona Teresa Cristina, nicknamed "the Mother of the Brazilians", was Empress of Brazil as the consort of Emperor Dom Pedro II from their marriage on 30 May 1843 until 15 November 1889, when the monarchy was abolished. Born a princess of the Kingdom of the Two Sicilies in present-day southern Italy, Teresa Cristina was the daughter of King Don Francesco I (Francis I) of the Italian branch of the House of Bourbon and his wife Maria Isabel. It was long believed by historians that the Princess was raised in an ultra-conservative, intolerant atmosphere which resulted in a timid and unassertive character in public and an ability to be contented with very little materially or emotionally. Recent studies revealed a more complex character, who despite having respected the social norms of the era, was able to assert a limited independence due to her strongly opinionated personality as well as her interest in learning, sciences and culture.

Dom Pedro II, nicknamed the Magnanimous, was the second and last monarch of the Empire of Brazil, reigning for over 58 years.

The Old Cathedral of Rio de Janeiro dedicated to Our Lady of Mount Carmel is an old Carmelite church which served as cathedral (Sé) of Rio de Janeiro from around 1808 until 1976. During the 19th century, it was also used successively as Royal and Imperial Chapel by the Portuguese Royal Family and the Brazilian Imperial Family, respectively. It is located in the Praça XV square, in downtown Rio. It is one of the most important historical buildings in the city.