In 1382, the Mamluk emir Barquq usurped the throne in Cairo, establishing the Burji regime. The latter were ethnic Circassians unlike their Turkmen Bahri predecessors, which resulted in frayed relations between the Turkmens of Keserwan and the new rulers. The tensions between the Turkmens of Keserwan and the Burji authorities contrasted with the Turkmens' principal rivals in Mount Lebanon, the Druze Buhturids, who embraced Sultan Barquq. When the latter was briefly toppled in a Bahri revolt in 1389, the Buhturids fought against the Bahri rebels in Damascus, while the Turkmen tribesmen assaulted the Druze Tanukhi tribesmen in Beirut and the surrounding hills. In those engagements and the executions that followed, the Turkmens killed seven of the eight Tanukhi Abi al-Jaysh Arslan emirs, Druze allies of the Buhturids.