[PzLdr]

Not so. the Quin were Manchus.

[rmlew]

According to Wikipedia, the Qing were descendants of Ghengis Khan through marriage. Some Manchus marrried Yuan princesses. Then again, it’s Wikipedia.

[Sherman Logan]

The Qing were Manchus. Their emperors frequently intermarried with Mongol princesses, descended from Genghis, for political reasons.

Here’s one example.

http://en.wikipedia.org/wiki/Empress_Dowager_Xiaozhuang

Since she was early in the dynasty, all succeeding emperors were descended from her, and through her from Genghis.