author of the Scottish historical romance The Acts and Deeds of the Illustrious and Valiant Champion Sir William Wallace, Knight of Elderslie, which is preserved in a manuscript dated 1488. He has been traditionally identified with the Blind Harry named among others in William Dunbar's The Lament for the Makaris (“poets”) and with a “Blin Hary” who is listed from time to time as having received a few shillings from the royal bounty in the treasurer's accounts (1490–92). According to a contemporary historian, John Major, Harry was a wandering minstrel, blind from birth, who collected and recited legends about the Scottish hero Sir William Wallace. From his own account he was an unlearned man, but his own work, which shows his acquaintance with John Barbour's epic The Bruce, with Geoffrey Chaucer, and with Scots, Latin, and French chronicles, belies this.

Wallace, which runs to 11 books and nearly 12,000 lines, is a historical novel in verse, fabricated from the events of the Scottish wars of independence, popular legend about Wallace, and earlier romances. Though Harry claims historicity for his work, he portrays Wallace on a superhuman scale, and many of the hero's astonishing feats actually take place long after the historical capture and execution of Wallace in 1305. Judged simply as a romance, Wallace is inferior to The Bruce in arrangement and literary finish. But because of its patriotic fervour, it was immensely more popular among the Scots than The Bruce and remained so into the 19th century.