What is "zarrinnaal"

Zarrinnaal or Zarrin Naal (Persian: زرين نعل) is the name of a dynasty of Persian-Kurdish tribal chiefs and state officials belonging to the Zarrin Kafsh tribe and originated from Sanandaj in the Iranian Kurdistan Province. Their heads with the title of Beyg, Beyk or Beg (lit."lord") were the Aghas of Senneh ("Masters of Sanandaj") and ruled their fiefdom during the time of four hundred years when the Safavids (r. 1501-1722), Afsharids (r. 1736–1796) and finally Qajar dynasty (r. 1785–1925) reigned in Iran.