Léonin (b. 1150?) was the first known composer; Pérotin (b. 1200?) was the second known composer.

Having known so much, we present Classicalite's Cartoon Trivia with Leo & Peri.

L: Hey, Peri, what was the name of that place we both used to work? C'mon, I know you remember. In Paris...

P: Surely, the place you're thinking of, dear Leo, is Cathédrale Notre-Dame de Paris.