Liber de arte honeste amandi et reprobatione inhonesti amoris

The Liber de arte honeste amandi et reprobatione inhonesti amoris, written around 1185 by Andr\u00e9 le Chapelain, is a treatise on the art of courtly love. It codifies the principles of this code of conduct, which prescribed the behavior of ladies and their lovers in the later Middle Ages. Le Chapelain is believed to have been a chaplain at the court of Marie, Countess of Champagne, who requested the work. The Liber was influential and was translated into French, with Guillaume de Lorris drawing upon it for the Roman de la rose. Courtly love emphasized service to the lady and often involved adulterous relationships, with the lover seeing himself as serving a god of love and worshipping his lady.12