When Jose Juaquin Nazario de Figueroa y de la Seda was born about 1710, in San Germán, Puerto Rico, his father, Juan Nazario de Figueroa, was 60 and his mother, Ana de la Seda y Sana-Borrero, was 55. He married Baltasara Martinez de Matos Y Velez-Borrero from 1716 to 1751, in San Germán, Puerto Rico. They were the parents of at least 4 sons and 4 daughters. He died on 19 August 1799, at the age of 89.