Lady Jane Grey was brought up by a strict lifestyle and a humanist education. Jane thought the such a life was too strict, and she often rebelled against her parents.
Lady Jane Grey never thought that she would become queen because as Edward had many sisters, she, as a cousin, would not have been chosen as queen. But when Edward was going to die, he named his cousin, Jane, as his successor.
Edward died on July 6th, 1553, and Jane reluctantly took the position of Queen four days after Edward's death on July 10th, 1553
Now Mary was the only surviving child of Henry VIII's first wife. Mary was a staunch catholic, and after her father's death, she started to collect followers to take over the kingdom.
Around nine days later, the Privy council (the council of which made Jane Queen) suddenly backed Mary as the Queen, and Jane Grey and her husband were imprisoned in the Tower of London. A few months later, Jane and her husband were executed, being convicted of high treason. Lady Jane Grey was 16-17 years old when she was executed.
Mary later married Philip, the King of Spain. Mary persecuted and executed so many protestants, that she earned the nickname, "Bloody Mary." Mary died in 1558 when there was an epidemic of influenza and was buried in Westminister abbey. Mary was succeeded by Elizabeth I.