Scotland's "Stone of Destiny'' has an ancient role in King Charles' coronation. Learn its centuries-old story.

London — The "Stone of Destiny," an ancient symbol of Scotland's monarchy, was on its way from Edinburgh Castle to London on Friday to play its role in the coronation of King Charles III on May 6. The stone, also known as the "Stone of Scone," was used for the coronation of Scotland's kings until it was seized more than 700 years ago by the then-King of England, Edward I.

The 335-pound stone was then held in Westminster Abbey — incorporated into the Coronation Chair — until 1996, when it was permanently returned to Scotland. It was agreed at the time of its return, however, that it would be brought back to England for future coronation ceremonies.