Emperor Constans II was a Byzantine emperor who ruled from 641 to 668 AD. He was the son of Emperor Constantine III and became known for his efforts to maintain the empire during a time of significant challenges, including military threats from the Arabs and internal strife. Constans II is notable for moving the imperial capital from Constantinople to Syracuse in Sicily for a period, seeking to strengthen the western provinces. During his reign, Constans II implemented various administrative reforms and promoted the use of the Greek language in government, which helped to solidify the cultural identity of the Byzantine Empire. He also faced opposition from various factions, including the Monophysites, and dealt with the complexities of religious disputes. His reign ended when he was assassinated in 668 AD.