Ruth Cardoso was born in Salvador, Brazil on February 9, 1934. In 1970, she was awarded the title of Woman International Master (WIM) from FIDE. She won the South American Women’s Championship in 1966, 1969, and 1972. She won the Brazilian Women’s Championship eight times in a row. She played four time in the Woman’s Interzonal Championship. She played in five World Chess Olympiads, playing first board for the Brazilian team each time. She died on Feb 11, 2000 of heart disease. She was an artist and woodcutter. She was married to former Brazilian President Fernando Henrique Cardoso.