Francisco de Borja Garção Stockler, 1st Baron of Vila da Praia, (25 September 1759, in Lisbon – 6 March 1829) was a lieutenant general and the 8th Captain General of the Azores, politician, and mathematician. During his life he held several posts, many coinciding with the European Peninsular War: lieutenant general in the military, secretary and councilor of the Conselho Ultramarino (Overseas Council), governor of Algarve and Governor/Captain-General of the Azores. He was also a member of the committee that formed the draft of the constitutional charter in 1823, before returning to academia (becoming a professor of mathematics at the Academia Real de Marinha, a deputy director of the Academia Militar do Rio de Janeiro, secretary of the Academia Real das Ciências de Lisboa and fellow Royal Society of London, among other honours. He was one of the pioneers in differential calculus and one of the most notable historians of mathematics in Portugal. Biography Stockler was born in Lisbon; son of Cristiano Stockler (a Lisbon merchant) and Margarida Joséfa Rita de Orgiens Garção de Carvalho, his grandfather, who was born in Hamburg, traced his roots to the historic cities of the Hanseatic League. Academia Stocker destined his career to the military. By 1784 (at the age of 25) he was a captain, enrolled at the University of Coimbra in mathematics. He obtained a bachelor's degree at the Academia Real de Marinha (Royal Marine Academy), where he began his investigation into the limits of differential calculation. While at the Academia Real Stockler was elected member of the Academia Real das Ciências de Lisboa (Lisbon Royal Academy of Sciences) in 1791, beginning a period of academic work resulting in many of publications, including his Memórias da Academia (Memories From The Academy). He published work essentially on the limits of differential calculus, becoming available in Portugal and published in Europe, gaining sufficient notoriety. On 3 January 1795, Garção Stockler married D. Inês Gertrudes de Mendonça e Moura, daughter of D. João Francisco de Moura (who was the customs notary of Lisbon). In 1806, Stockler was elected as a member to the American Philosophical Society in Philadelphia. He published other works that honoured academics and politics, among them were biographies of Pascoal José de Melo Freire dos Reis, José Joaquim Soares de Barros e Vasconcelos, Roberto Nunes da Costa, Martinho de Melo e Castro, Bento Sanches de Orta and Guilherme Luís António de Valleré,