"Galeotto was the book and he who wrote it"

Francesca and Paolo
Public DomainFrancesca and Paolo - Credit: Dante Gabriel Rossetti

(Canto 5, line 137)

In the story of Lancelot, Galehaut (Galeotto in Italian) is the one who convinces the timid Lancelot to reveal his love to queen Guinevere. Because of this role, his name was known in the Middle Ages as a sort of shorthand for matchmakers, and therefore the lovers here call both the book and its author "Galeotto".