Geraldine McCaughrean 
Vainglory 

Vainglory begins in France in 1429, as Victoire de Gloriole regains possession of the family castle from the English following the Battle of Agincourt. From Joan of Arc through to Catherine de Medici and the slaughter of the Huguenots, Vainglory tells the story of a power-hungry family who will let nothing and no one get in their way.