The regency period is how the decade from 1831 to 1840 became known in the history of the Empire of Brazil, between the abdication of Emperor Pedro I, on 7 April 1831, and the declaration of majority of Pedro II, who was legally declared of age by the Senate at the age of 14 on 23 July 1840.
Born on 2 December 1825, Pedro II was, at the time of his father's abdication, 5 years and 4 months old, and therefore could not assume the government which, by law, would be headed by a regency made up of three representatives. During this decade there were four consecutive regencies: the Provisional Triumviral, the Permanent Triumviral, the una (sole) of Diogo Antônio Feijó and the una of Pedro de Araújo Lima.