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