The Temple of Glass (1477)

Medieval poem. According to Wikipedia: "John Lydgate of Bury (c. 1370 – c. 1451) was a monk and poet, born in Lidgate, Suffolk, England. Lydgate is at once a greater and a lesser poet than John Gower. He is a greater poet because of his greater range and force; he has a much more powerful machine at his command. The sheer bulk of Lydgate's poetic output is prodigious, amounting, at a conservative count, to about 145,000 lines."