Jean Dubreuil, also known as Jean Du Breuil (22 July 1602 â 27 April 1670), was a French mathematician, music theorist, writer and essayist.
Son of the bookseller Claude Du Breuil, he continued his father's profession until he joined the Society of Jesus. He lived for a long time in Rome where he studied architecture. He is known for his work about the theory and practice of perspective.