Namesakes
Alfredo de Sá Cardoso
(m) 1864-1950 
Portuguese Presidents and Prime Ministers 1919-1920 (prime minister)
Bernardo de Sá Nogueira de Figueiredo
(m) 1795-1876
Portuguese Presidents and Prime Ministers 1836-1837; 1837-1839; 1865; 1868-1869; 1870 (prime minister)
Francisco de Sá Carneiro
(m) 1934-1980
Portuguese Presidents and Prime Ministers 1980 (prime minister)