Events in the year 1811 in Portugal. Incumbents Monarch: Mary I Events 11 March – Battle of Pombal 12 March Battle of Redinha 14 March – Battle of Casal Novo 25 March – Battle of Campo Maior 3 April – Battle of Sabugal 14 April–10 May – Blockade of Almeida Births
27 January – João Crisóstomo de Abreu e Sousa, prime minister (died 1895)
4 June – Antonia Ferreira, businesswoman, known for leadership in the cultivation of port wine and for winemaking innovations (d. 1896). References