Maria Carlota Costallat de Macedo Soares, self-taught architect and lover of U.S. poet Elizabeth Bishop, came from a prominent political family in Brazil. The two met when Bishop was visiting Brazil and became sick and Soares nursed her back to health. Bishop ended up staying with Soares in her house in Petropolís for eight years, when Soares began work on what would become Flamengo Park in Rio De Janeiro and they moved to the city. Seven years later i 1967, Soares followed Bishop back to New York. On the day she landed in New York, she deliberately took an overdose of tranquilizers and died several days later. She was 57.
Lota Soares has a wikipedia page here. Rare and Commonplace Flowers: The Story of Elizabeth Bishop and Lota de Macedo Soares by Carmen Oliveira is available at Amazon; you can read a New York Times review of the book here.