The subjects and styles of these prologues show great variety: some appear to be literary exercises with little or no connexion with the books which they introduce, and were perhaps written earlier and for other purposes.
Even the prologues, which later researches have shown to be in the main by the hand of Plautus himself, though certain passages were clearly added at a later date, e.g.
To judge, however, from the dedications, prologues and epilogues of his various plays, he seems to have enjoyed the patronage of the earl, afterwards duke, of Newcastle, "himself a muse" after a fashion, and Lord Craven, the supposed husband of the ex-queen of Bohemia.
Some of his prologues and epilogues were written for the London theatres.
Burns composed several prologues and epilogues for some of its actors and actresses.