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What happened to Byzantine Emperor Nicephorus I after Krum defeated his army?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
Flag of Bulgaria with three horizontal stripes: white on top, green in the middle, and red on the bottom.
history of Bulgaria

After the Bulgar khan Krum defeated the Byzantine army and killed Emperor Nicephorus I on July 26, 811, he took the emperor's skull, lined it with silver, and used it as a drinking cup.123