Francis II succeeds to the throne of France on the death of his
father Henry II in a tournament. Francis is only 15 years old, so
his mother Catherine de' Medici is appointed Regent, but in
reality, Francois, Duke of Guise, and his brother, the Cardinal of
Lorraine, seize power. Francis' wife, Mary Queen of Scots, throws
out a challenge to Elizabeth I by taking the title Queen of
England.
Citation:
Editors. "Francis II succeeds to throne of France".
The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14975, accessed 24 May 2013.]