Well, then I do know that Frye said Azeri Turks were the founders of Safavid dynasty, but I do not list it exactly as said. And the point of poetry, a person can be fascinated by Theodore Dreiser and name his daughter Carrie, it does not mean that person claims descendance from Americans. So the argument that he claimed or believed to be descendant of Royal Persians does not have ground, especially given the fact that Ismail claimed being a descendant of Ali ibn Abu Talib. Similarly, we don't claim Ismail as a pure Turk, based on the fact that he wrote primarily in Turkish.