(581–618) as occurring during the reign of Maurice, noting that China had previously been divided politically along the Yangzi River by two warring nations. Family By his wife Fausta, a daughter of the patrician Valentinus, Constans II had three sons: Constantine IV, who succeeded him as Emperor Heraclius, co-emperor from 659 to 681 Tiberius, co-emperor from 659 to 681 Coinage gallery Ancestry See also List of Byzantine emperors Notes References Bibliography Liber Pontificalis Paul the Deacon, Historia Langobardorum, Book V |- 630 births 668 deaths 7th-century Byzantine emperors 7th-century murdered monarchs Heraclian dynasty Medieval child monarchs Assassinated Byzantine emperors Imperial Roman consuls 640s in the Byzantine Empire 650s in the Byzantine Empire 660s in the Byzantine Empire Sons of Byzantine emperors