1,400-year-old royal tomb in U.K.

A painted wooden box fragment

An underground chamber discovered by road workers appears to be the site of the earliest Christian royal burial ever found in Britain. Researchers are calling it the Anglo-Saxon equivalent of King Tutankhamun's tomb. The chamber was uncovered between a road and a railway line in the southeastern English village of Prittlewell in 2003.

Archeologists say it is the most important Anglo-Saxon burial discovery in more than 70 years. Treasures unearthed at the site include a golden belt buckle, the remnants of a lyre, and gleaming imported glassware.

It's thought to be the burial chamber of Seaxa, the brother of Anglo-Saxon King Saebert. Fragments of tooth enamel, the only human remains uncovered, revealed the occupant of the rich burial was just over 6 years old.

Sæberht, Saberht or Sæbert was the King of Essex from c. 604 to c. 616. In another burial, an Anglo-Saxon prince who could have been a relative of King Saebert, may have been buried clutching gold coins in each hand. The coins were found inside the remnants of the man's wooden coffin, positioned where his hands likely would have been.