The Order of Saint Jerome or Hieronymites (Latin: Ordo Sancti Hieronymi, abbreviated O.S.H.) is a Roman Catholic enclosed religious order and a common name for several congregations of hermits living according to the Rule of Saint Augustine, with supplementary regulations taken from the writings of the 5th-century monk and scholar, Saint Jerome (actual Doctor of the Church). The principal group with this name was founded in Spain and Portugal in the 14th century. Their traditional habit is a white tunic with a brown, hooded scapular and a brown mantle.