Franz Schubert's Wiegenlied "Schlafe, schlafe, holder süßer Knabe", D 498, Op. 98, No. 2, is a lullaby composed in November 1816. The song is also known as "Mille cherubini in coro" after an Italian language arrangement for voice and orchestra by Alois Melichar.
The author of the lyrics is unknown; they are sometimes attributed to Matthias Claudius, but the poem does not appear in Claudius' collected works.
Alois Melichar arranged Wiegenlied along with incidental music from Schubert's opera Rosamunde to form the song "Mille cherubini in coro" for the 1935 film Vergiß mein nicht. It was performed by the tenor Beniamino Gigli with the Berlin State Opera Orchestra.
In more recent times the song was notably sung by tenor Luciano Pavarotti, usually in his Christmas concerts.