Ralph Vaughan Williams wrote a Fantasia on it for his opera Sir John in Love, Ferruccio Busoni used it in the beginning of his version of Turandot and John Gay used it in his 
Ralph Vaughan Williams wrote a Fantasia on it for his opera Sir John in Love, Ferruccio Busoni used it in the beginning of his version of Turandot and John Gay used it in his opera The Beggars (*) Opera. It is mentioned twice without explanation by Mistress Ford in Shakespeare's The Merry Wives of Windsor. According to legend it was written by Henry VIII about being spurned by Anne Boleyn. This is, FTP, what song, which shares a tune with "What Child Is This?"
Ralph Vaughan Williams wrote a Fantasia on it for his opera Sir John in Love, Ferruccio Busoni used it in the beginning of his version of Turandot and John Gay used it in his opera The Beggars (*) Opera.
{“Greensleeves”}