When was the earliest version of the story told in La bella dormente nel bosco composed?
La bella dormente nel bosco: La bella dormente nel bosco is an opera in three acts by Ottorino Respighi to a libretto by Gian Bistolfi based on Charles Perrault's fairy tale "Sleeping Beauty". Sleeping Beauty:  The earliest known version of the story is found in the narrative "Perceforest", composed between 1330 and 1344 and first printed in 1528.
i don't know