sentences:  Areas such as holy cities and Venetian tributary areas of Cyprus and Zante were not fully incorporated either.Finally, some small areas such as Montenegro/Zeta and Mount Lebanon did not merit the effort of conquest and were not fully subordinated to the Empire.There were also secondary vassals such as the Nogai Horde and the Circassians who were (at least nominally) vassals of the khans of Crimea, or some Berbers and Arabs who paid tribute to the North African beylerbeyis, who were in turn Ottoman vassals themselves.