Born in
Luanda in 1951, Sita Valles was the daughter of Edgar Francisco da Purificação Valles, a government
agronomist, and Maria Lúcia Aida Florinda Dias Valles, a housewife, a prosperous
Goan Catholic couple based in what was then
Portuguese Angola. Seen in her time as pretty, intelligent and charming, she was also bold and independent, according to her biographers. She rejected her Catholic upbringing and began her political activity by joining the Faculty of Medicine of Luanda, where she briefly associated with
Maoist groups before switching to a pro-Soviet position. Reviewer Adolfo Mascarenhas describes her from a photograph he encountered in her 2018 English-language biography: "...there she was, more standing than leaning on a Morris Minor sedan of the 1950s, tallish, determined jaw, crossed legs, a shortish white skirt topped by a polar necked long sleeved blouse." When she continued her studies in
Lisbon, from 1971, she became part of the network of
Communist militants and in the
Communist Students' League. There, she would grow into one of Portuguese Communism's most prominent figures, next only to
Zita Seabra. ==Role following the Carnation Revolution==