José de Mascarenhas Relvas (1858-1929). Proclaimed the Portuguese Republic from the balcony of Lisbon City Hall on 5th October 1910.
Father António Vieira (1608-1697). A Jesuit priest, missionary, diplomat and orator, António Vieira is also considered one of the greatest prose writers in the Portuguese language.
Maria Helena Vieira da Silva (1908-1992). Born in Lisbon to a family who encouraged an interest in painting, literature and music at an early age, she moved to Paris in 1928 to study sculpture, which she immediately abandoned in favour of painting.
Aureliano Lopes de Mira Fernandes (1884-1958). University professor and mathematician, Aureliano Fernandes was born in the Municipality of Mértola.
Ricardo Jorge (1858-1939). Doctor and writer, was born in Oporto, where he graduated from the Medical-Surgical Faculty. He had a brilliant career as a university professor and was appointed to the chair of Hygiene and Forensic Medicine.