Emperor Nikephoros I was a Byzantine emperor who ruled from 802 to 811 AD. He was known for his military campaigns against the Bulgarian Empire and for his efforts to strengthen the Byzantine economy. Nikephoros was a skilled administrator and implemented various reforms to improve the empire's financial stability. Nikephoros I was also notable for his conflict with the Franks, particularly during his reign when he sought to expand Byzantine influence in the Balkans. His reign ended when he was defeated and killed in battle against the Bulgarians, marking a significant moment in Byzantine history.