On the death of Cardinal Richelieu, his protegé Jules Mazarin takes over as Louis XIII's chief minister.
Editors. "Death of Cardinal Richelieu; Mazarin becomes Chief Minister". The Literary Encyclopedia. First published 01 March 2011; last revised 30 November -1.
[http://www.litencyc.com/php/stopics.php?rec=true&UID=2237, accessed 18 April 2015.]