They were probably composed and transmitted orally and only began to be written down and printed, often as broadsides and as part of chapbooks, later being recorded and noted in books by collectors including Robert Burns and Walter Scott. In the early fifteenth century Scots historical works included Andrew of Wyntoun's verse Orygynale Cronykil of Scotland and Blind Harry's The Wallace, which blended historical romance with the verse chronicle. They were probably influenced by Scots versions of popular French romances that were also produced in the period, including The Buik of Alexander, Launcelot o the Laik, The Porteous of Noblenes by Gilbert Hay. Much Middle Scots literature was produced by makars, poets with links to the royal court, which included James I, who wrote the extended poem The Kingis Quair. Many of the makars had university education and so were also connected with the Kirk. However, William Dunbar's (1460–1513) Lament for the Makaris (c. 1505) provides evidence of a wider tradition of secular writing outside of Court and Kirk now largely lost. Writers such as Dunbar, Robert Henryson, Walter Kennedy and Gavin Douglas have been seen as creating a golden age in Scottish poetry. Major works include Richard Holland's satire the Buke of the Howlat (c. 1448). Dunbar produced satires, lyrics, invectives and dream visions that established the vernacular as a flexible medium for poetry of any kind. Robert Henryson (c. 1450-c. 1505), re-worked Medieval and Classical sources, such as Chaucer and Aesop in works such as his Testament of Cresseid and The Morall Fabillis. Gavin Douglas (1475–1522), who became Bishop of Dunkeld, injected Humanist concerns and classical sources into his poetry. Much of their work survives in a single collection. The Bannatyne Manuscript was collated by George Bannatyne (1545–1608) around 1560 and contains the work of many Scots poets who would otherwise be unknown. In the late fifteenth century, Scots prose also began to develop as a genre. Although there are earlier fragments of original Scots prose, such as the Auchinleck Chronicle, the first complete surviving work is John Ireland's The Meroure of Wyssdome (1490). There were also prose translations of French books of chivalry that survive from the 1450s, including The Book of the Law of Armys and the Order of Knychthode and the treatise Secreta Secetorum, an Arabic work believed to be Aristotle's advice to Alexander the Great. The landmark work in the reign of James IV