The next major offensive against Tripoli was in 1289 by the Mamluk Sultan Qalawun, who successfully orchestrated the Fall of Tripoli and destruction of the Crusader State. He then made plans to capture the last major Crusader stronghold, Saint-Jean d'Acre, but died in 1290. The Fall of Acre was achieved in 1291 by Qalawun's son, Al-Ashraf Khalil.