Bozayenture (1598-1647), an eminent mathematician, a native of Milan, and friar of the order of the Jesuits of St Jerome, was the professor of mathematics at Bologna, where he published several mathematical books. The most famous of these are entitled Directorium generale Uranometricum; Geometria indivisibilium Continuum, &c.; Trigonometria plana et sphaerica, and Exercitationes Geometricae.