HISTORY OF PATHANS : HISTORY OF YOUSAFZAI:
https://historyofpathans.blogspot.com/2013/09/history-of-yousafzai.html
Theories of Origin The Yusufzais are said to be descended from one Mandai, who had two sons, Umar and Yusuf. Umar died, leaving one son, Mandan; from Mandan and Yusuf come the two primary divisions of the Yusufzais, which are split into numerous subdivisions, including the Isazai, Malizai, Akazai, Ranizai and Utmanzai.
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