You may be interested in "Sir Orfeo," 13th-14th century, from "The Middle English Breton Lays," edited Anne Laskaya and Eve Salisbury. The text is from the Auchinlech MS of the medieval romance, of which the ballad is a brief paraphrase.
The text includes translation of old words and phrases that are unfamiliar to modern readers.

http://www.lib.rochester.edu/camelot/teams/orfeo.htm
Orfeo