Versailles

Louis welcomes Leopold, the Emperor vanquished of the Holy Empire, to Versailles. Philip, victorious in the war, was given the task of selecting prisoners to deport them to the colonies.

Louis and Leopold compete for control of Spain, and Maria Theresa plays a dangerous game by supporting her lover rather than her husband. Philippe continues his investigation on the man with the iron mask.

In Paris, Fabien finds it difficult to maintain order. At court, Louis rejects Maintenon when his troubled past is exposed to the light. Philippe is attacked after spotting the man with the iron mask.

Louis has Marie-Therese confined to the castle, suspecting her of conspiring against him with Leopold. Louis raises indignation by imprisoning a prominent Protestant philosopher.

Maintenon returns to the palace and encourages Louis to put his plans into action. Louis wants to discredit Leopold, and makes a secret pact with Barek, the Ottoman emissary.

Louis changes tactics to counter Leopold, but he discovers a new opponent with Cardinal Leto, attending the funeral of the Queen.

The burning question remains: who is the man with the iron mask? Leto decides to bring the man with the iron mask to Versailles, but Bontemps feels the danger.

While Philippe wants to send the man with the iron mask to the colonies, Louis knows that it must be eliminated.

Fabien knows Louis has killed the prisoner and deduces the truth about the Man in the Iron Mask. Philippe decides to leave the court. Leto convinces Maintenon to support the marriage of Louis and the Infanta Isabella.

After crushing the Protestants and thwarted Leto, Louis feels invincible. But his family and France are divided. What to expect from the future? What will be his legacy?