We genetically tested the Y-chromosome of a male member of the Murad family (my brother). The result is: Balkan. Particularly, Albanian. (Haplogroup J2b1)
Sultan Murad I started the "devshirme" system, where Christian boys were abducted from Albanian (and also Bosnian and Serbian) families. They were forced to convert to Islam, and they were conscripted as "janissaries" (in Turkish: yenicheri = "new soldier"). After successful military service they were given money and rewards. Those who became officers were given a "timar" or large tract of land to administer. They would extract the taxes from the land, keep some as income for their families, and the rest would be sent to the Imperial Treasury in Istanbul. The commander of the Janissaries was called the "Agha." (There was an Albanian man named Omar Agha who is the grandfather of a family patriarch Abdo Murad in Safad.)
In the 1300's mamluks from the Steppe of Central Asia and Eastern Europe settled in Safad. (The Kussad / Qussad family is an example of a mamluk family, with origins in Central Asia or E. Europe.) Later, under Ottoman rule, in the 1400's and 1500's, an Albanian janissary retired to Safad and thus began the Murad family.
There were 3 landlord families in Safad: Qaddoura (50,000 dunums), Murad (15,000 dunums) and Subh (5,000 dunums). It would be interesting to see the genetic results of the Qaddoura and Subh families... Albanian as well?