Maria Eduarda Lapa de Sousa Caldeira was born on 15 October 1895, in Trancoso, Portugal.

[1][2][3] Between 1917 and 1928 she exhibited at several shows in Portugal, including at Trancoso, Coimbra, Lisbon, Leiria, Viseu, Porto, and, in 1928, in Rio de Janeiro in Brazil.

In 1940, she became one of the driving forces behind the creation of the Guarda Museum, near her home town of Trancoso, to which she donated some of her works and organized the inaugural exhibition.

Two years later, she organized in Lisbon the first Female Exhibition of Plastic Arts held in Portugal, with the support of the CNMP.

She received the Gold Medal awarded by the Estoril Salon in 1950, and was represented at exhibitions in Seville, Spain in 1952 and Lourenço Marques, (now Maputo), in Mozambique in 1955.