Valperga by Mary Shelley

WHEN Castruccio and Euthanasia arrived at Florence, they found the citizens celebrating a festival: the bells were ringing; the country people were flocking into the town; and the youths of both sexes, of the highest rank, and richly dressed, were parading the streets, covered with wreaths of flowers, and singing the poems of Dante, or his friend Guido, to the accompaniment of many instruments. Castruccio said: "I must ask you, fair Euthanasia, who are so learned in Florentine customs, to inform me of the meaning of this gaiety."

"Indeed, I am entirely ignorant. I know that during peace joyful meetings take place every May, among the young nobility; but this seems a general festivity. Let us ask that grave gentleman in the black capuchin, if he knows the reason of a merriment, which at least has not communicated itself to his face."