António Francisco Cardim. Relaçaõ da gloriosa morte de qvatro embaixadores Portuguezes, da Cidade de Macao, com sincoenta, & sete Christaõs de sua companhia, degolàdos todos pella fee de Christo em Nangassaqui, Cidade de Iappaõ, a tres de Agosto de 1640: com todas as circunstancias de sua Embaixada, tirada de informaçoes verdadeiras, & testemunhas de vista. Lisbon: Lourenço de Anueres, 1643. [Report on the glorious death of four Portuguese ambassadors, from the city of Macau, and accompanied by fifty-seven Christians, all of whom were decapitated for their Christian faith in Nagasaki, city of Japan, on the third of August 1640: With all the circumstances of their embassy, based on true information and eyewitnesses.]
Cardim was a Portuguese Jesuit who worked in missions in India, China and Japan and died in Macau. He was named Procurador-Geral (Attorney General) of the Province of Japan and attempted to normalize relations between the Portuguese and Japanese following the massacre described in this report.