Peter Abelard (/ˈæb.ə.lɑrd/; Latin: Petrus Abaelardus or Abailardus; French: Pierre Abélard, pronounced: [a.be.laːʁ]; 1079 – 21 April 1142) was a medieval French scholastic philosopher, theologian and preeminent logician. He was also a composer. His affair with and love for Héloïse d'Argenteuil has become legendary. The Chambers Biographical Dictionary describes him as "the keenest thinker and boldest theologian of the 12th Century".