King Rædwald of East Anglia was Bretwalda, the most powerful king in England in the early 7th century. He died in about 624 CE and is probably the king buried at Sutton Hoo, across the River Deben from Woodbridge. The burial ship is 89 feet (27 m) long. The treasures discovered there in 1939 were the richest ever found on British soil. They are held now in the British Museum in London, but replicas of some items and the story of the finds can be seen in the Woodbridge Museum. The National Trust has built a visitor centre on the site.