February 12, 1554: Lady Jane Grey Executed. 18 years old, and Queen of England for only 9 days, Jane was almost entirely blameless of the crimes of which she was accused. Her scheming relatives had put her on the throne, and, in fact, it wasn't all that far-fetched. Edward VI had named her as his heir. But, in the end, it all boiled down to who could grasp the throne -- and keep it.