 Complete the following phrase:  Undeterred by the terms of these newly formed peace treaties, Qalawun sacked the impregnable Hospitaller fortress of Margat in 1285, and established a Mamluk garrison there. He also captured and destroyed the castle of Maraclea. He captured Latakia in 1287 and Tripoli on April 27, 1289, thus ending the Crusader County of Tripoli. The 