Namesakes
Alexandrina Maria da Costa
(f) 1904-1955 
Saints
António Bernardo da Costa Cabral
(m) 1803-1889
Portuguese Presidents and Prime Ministers 1849-1851 (prime minister)
Francisco da Costa Gomes
(m) 1914-2001
Portuguese Presidents and Prime Ministers 1974-1976 (president)
Manuel Gomes da Costa
(m) 1863-1929
Portuguese Presidents and Prime Ministers 1926 (prime minister/president)
Alfredo Nobre da Costa
(m) 1923-1996
Portuguese Presidents and Prime Ministers 1978 (prime minister)