Aquinas,
Saint Thomas (1225?-74); It. theologian & philosopher: his day is March 7: called the Angelic Doctor
See Aquinas in American Heritage Dictionary 4
(ə-kwīˈnəs), Saint Thomas 1225-1274.
Italian Dominican friar, theologian, and philosopher. The most influential thinker of the medieval period, his philosophy combined Aristotelianism and elements of Neo-Platonism within a context of Christian thought. His works include the Summa contra gentiles (1259-1264) and the Summa theologiae or theologica (1266-1273).