(Source: The Knight's Tale, by Geoffrey Chaucer)
The effects of Lovesickness described in Canterbury Tales.
In the medieval period, "Lovesickness" was treated as a genuine physical and mental illness that arose from an imbalance of bodily humors and the sight of a great beauty. In particular, it was associated with the nobility and it affected men, hence why Geoffrey refers to it as a "Malady of Heroes" in the image above.
It's this medical treatment of Passionate Love/Eros/Amor that informs many of the strange-to-modern-ears actions and habits of literary characters, such as Sir Lancelot, Galehaut and even Uther Pendragon:
(Source: Historia Regum Britanniae, by Geoffrey of Monmouth)
















