On This Day in Tudor History:

On February 20, 1547, Prince Edward is crowned King Edward VI of England at the tender age of 9.
Edward was the long awaited son of Henry VIII with his third wife, Jane Seymour. Edward was England's first sovereign to be raised a full Protestant.
Sadly, Edward's reign was marked by economic and social unrest. Of course, Edward only ever ruled through a Regency Council because he never reached maturity.
Edward fell ill in January 1553, and when it was discovered to be terminal, he and his Council attempted to prevent the country being returned to Catholicism by naming his cousin, Lady Jane Grey, as his heir and excluding his half sisters, Princesses Mary and Elizabeth. This would doom Lady Jane to execution by Queen Mary I.