John of St. Thomas

John of St. Thomas
BornJoão Poinsot
9 July 1589
Lisbon, Portugal
Died15 June 1644
Fraga, Spain
OccupationFriar, philosopher, theologian
EducationUniversity of Coimbra
University of Louvain
SubjectMetaphysics, logic, epistemology, ethics, political philosophy, semiotics
Literary movementScholasticism, Thomism
Notable worksTractatus de Signis

John of St. Thomas O.P., born João Poinsot (also called John Poinsot in English; 9 July 1589  15 June 1644), was a Portuguese Dominican friar, Thomist theologian, and professor of philosophy. He is known for being an early theorist in the field of semiotics.