The fall of Acre to the Mamluk Sultan al-Ashraf Khalil in May 1291 ended the last significant Crusader stronghold in the Holy Land, marking the definitive end of two centuries of Latin Christian military presence in the Levant. The city's massive fortifications, including the renowned walls of the Hospitallers and Templars, fell after a six-week siege. The event sent shockwaves through European Christendom and triggered a prolonged lament literature across multiple languages.

The fall of Acre produced an immediate literary response across Europe: Latin planctus, French laments, and vernacular poems mourning the loss of the Holy City circulated widely. The failure of crusading became a theme in Dante's Divine Comedy, which consigns negligent popes to Hell partly for their failure to defend the Christian East. The image of the fallen fortress as divine punishment for Christian sin became a recurring trope in late medieval religious verse.