Brewer's: Orlando Innamorato
(Roland the paladin in love). A romantic epic in three books, by the Count Boiardo of Scandiano, in Italy (1495).
There is a burlesque in verse of the same title by Berni of Tuscany (1538), author of Burlesque Rhymes.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894