Guest Stars Ludivine Sagnier as Diane de Poitiers Ruby Bentall as Angelica Antonia Clarke as Mary, Queen of Scots Paul Chahidi as Charles de Bourbon Lee Ingleby as Henri (Older) Liv Hill as Young Catherine Alex Heath as Young Prince Henri Rupert Everett as Charles V Co Starring Rebecca Gethings as Queen Eleanor Jean-Stan Du Pac as Little Boy Matisse George Jaques as Francis II Jade Croot as Edith Steve Furst as Dr. Fernel Nicolas Robin as Gabriel de Lorges de Montgommery Antonin Brunelle-Remy as Ambush Boy Tristan Bowles as Page Boy Matthieu Lionnard as Guard Rahima Sean Guégan as Prisoner #3 Stefo Linard as Soldier