The Book of the Duchess is a surreal poem that was presumably written as an elegy for Blanche, Duchess of Lancaster's (the wife of Geoffrey Chaucer's patron, the royal Duke of Lancaster, John of Gaunt) death in 1368 or 1369. The poem was written a few years after the event and is widely regarded as flattering to both the Duke and the Duchess. It has 1334 lines and is written in octosyllabic rhyming couplets.
