Intermarriage enabled upward mobility in Ottoman Egypt. [fact]
Many took pride in direct descent from slaves, a claim that became easier to make as more and more Egyptians entered the ranks of the elite and thus were able to marry (or were given in marriage) the freed slave-women of the Ottoman-Egyptian ruling classes, who were considered to be members of the nobility. There was thus honor and social mobility inherent in the intermarriage between women of the Ottoman-Egyptian households and ambitious Egyptians, demonstrating that a certain kind of slavery led to social mobility. This also created a level of society whose members were half Egyptian and half Circassian, like the lawyer and states- man Ahmad Shafïk.
Eve M. Troutt Powell, A Different Shade of Coloni…, loc. 647