The Hellenistic kingdom of Commagene, bounded by Cilicia on the west and Cappadocia on the north, arose in 162 BC when its governor, Ptolemy, a satrap of the disintegrating Seleucid Empire, declared himself independent. Ptolemy's dynasty was related to the Parthian kings, but his descendant Mithridates I Callinicus (109 BC–70 BC) embraced Hellenistic culture and married the Syrian Greek Princess Laodice VII Thea. His dynasty could thus claim ties with both Alexander the Great and the Persian kings. This marriage may also have been part of a peace treaty between Commagene and the Seleucid Empire. From this point on, the kingdom of Commagene became more Greek than Persian. With Sophene, it was to serve as an important centre for the transmission of Hellenistic and Roman culture in the region. Details are sketchy, but Mithridates Callinicus is thought have accepted Armenian suzerainty during the reign of Tigranes II the Great.