 Nyorai kupfuurira kweiyi ndima - Muna 1820 Constitutionalist Revolutionrakaputika muPortugal. Sangano rakatangwa navanyoresa bumbiro remitemo rakaguma nomusangano weCortes kana kuti Constituent Assembly, iyo yaizofanira kusika bumbiro rokutanga roumambo. Cortes panguva imwecheteyo yakada kudzoka kwaMambo Dom John VI, uyo anga achigara muBrazil kubvira 1808, uyo akasimudza Brazil kuita humambo sechikamu cheUnited Kingdom yePortugal, Brazil neAlgarves muna 1815 uye uyo akasarudza mwanakomana wake uye mugari wenhaka muchinda Dom Pedro semutongi, kuti atonge Brazil panzvimbo yake musi wa7 Kurume 1821. Mambo akaenda kuEurope musi wa 26 April, apo Dom Pedro akaramba ari muBrazil achitonga achibatsirwa nemakurukota eUmambo Interior neZvekunze, zveHondo, zveNavy uye zveMari. 