Namesakes
Alfredo de Sá Cardoso
(m) 1864-1950 
Portuguese Presidents and Prime Ministers 1919-1920 (prime minister)
Fernando Henrique Cardoso
(m) 1931-
Brazilian Presidents 1995-2002
Luís Montenegro
(a.k.a. Cardoso) (m) 1973-
Portuguese Presidents and Prime Ministers 2024- (prime minister)