Historically, the Ottoman Dynasty came close to extinction in 1640 when Murad IV died and he reportedly was about to execute his brother Ibrahim (who became Sultan after his death) before his death, so what happens next if Ibrahim had been executed before Murad IV's death? AFAIK, the Girays would take over the Ottoman Empire if the Ottomans had gone extinct, but how stable would their rule be? What would an "Ottoman Empire" ruled by the Girays look like? Do the enemies of the Ottoman Empire take advantage of this?