Nathaniel Middleton

Mary must help Catherine, even if it puts the alliance with Scotland at risk; Elizabeth struggles at the thought of losing Dudley.

In her attempt to protect Elizabeth, Mary unwittingly puts Gideon's life in jeopardy; Bash is determined to find the men who are threatening Catherine.

Mary relies on Gideon to uncover the truth about Prince Don Carlos; Elizabeth makes a stunning discovery; Narcisse forces Claude to get married to someone of his choosing.

Queen Mary struggles to hold on to her power in Scotland amidst Queen Elizabeth's campaign to sabotage her with the help of a new ally in Queen Catherine.

Mary may have to sacrifice her cousin to save her own life; Catherine is haunted by her past; Elizabeth and Lola become an unlikely team.

As Charles' coronation looms, Mary looks to align with a strong suitor; Mary discovers the identity of the person who poisoned Elizabeth; Catherine becomes a new kind of victim for the castle's killer.