Complex sentence: However, the Ottoman Empire retained the Mamluks as an Egyptian ruling class and the Mamluks and the Burji family succeeded in regaining much of their influence, but remained technical vassals of the Ottomans.
Split into simpler sentences: However, the Ottoman Empire retained the Mamluks as the Egyptian ruling class. The Mamluks and the Burji family regained much of their influence, but technically remained vassals of the Ottomans.