sentences:  In the "Book of Deeds of Ardashir, Son of Babag", it is Patešxâr again.Ibn Isfandiyar and Mir Zahir al-Din Mar'ashi – the old geographers of Mazandaran – give its name as Patešxârgar as a large area in present-day Mazandaran, including Azerbaijan, Gilan, Tabaristan, Kumesh and Damghan.Mohammad Hassan Khan (Etemad Saltaneh's "Tadvin Fi Ahval Jebal Shervin", "History of Savadkuh") mentions it as the old name of the ancient area of Savâdkuh.