Did the vikings rule east Anglia?

Yes, the Vikings did rule East Anglia during the late 9th and early 10th centuries. After a series of raids and conquests, they established control over the region, particularly under the leadership of the Danish king, Guthrum, who became the first Viking king of East Anglia. This period of Viking rule significantly influenced the culture and governance of East Anglia until the eventual integration into the Kingdom of England.