Heraclius and Tong Yabghu (called Ziebel in the Byzantine sources) met under the walls of Narikala. The yabgu rode up to the emperor, kissed his shoulder and made a bow. In return, Heraclius hugged the barbarian ruler, called him his son, and crowned him with his own diadem.[12] During the ensuing feast the Khazar leaders received ample gifts in the shape of earrings and clothes, while the yabghu was promised the hand of the emperor's daughter, Eudoxia Epiphania.[12][13]