John of Salisbury, who described himself as Johannes Parvus, was an English author, philosopher, educationalist, diplomat and bishop of Chartres.
John of Salisbury teaching philosophy
A page from the Metalogicon
Peter Abelard was a medieval French scholastic philosopher, leading logician, theologian, poet, composer and musician.
Abelard and Heloise
Page from Apologia contra Bernardum, Abelard's reply to Bernard of Clairvaux
"Abaelardus and Heloïse surprised by Master Fulbert", by Romanticist painter Jean Vignaud (1819)
Abelard, attacked and castrated