Complex sentence: Vasak III (c.800) suffered an assault from the emir of Manazkert, Sevada that established a garrison in Chalat, in the district of Dzoluk, then called for help from the Persian revolutionary chief Babek, who had married a daughter of the king.
Split into simpler sentences: Vasak III (c.800) suffered an assault from the emir of Manazkert, Sevada. He then called for help from the Persian revolutionary chief Babek, who had married a daughter of the king.