In the Pilot, Mary opens the door to the passageway to her room by pushing it away from her. In this episode, when she shows Francis the passage, she pulls the door in towards her.
Mary I Queen of England, and Future Queen of England, Elizabeth I are both mentioned.
Mary Queen of Scots: I can't bring home any armies and I can't wed any kings if I'm dead.
Music: "Scotland" by The Lumineers; "Flowers in Your Hair" by The Lumineers; "Give up the Ghost (with Johnny McDaid" by Rosi Golan; "Wistful Thinking" by A. Void & David Young; "Final Days" by Matt Wilcox; "Navigate" by Band of Skulls
The "English Kingdom" at this time in History would have been in the control of Queen Mary I
'Snake in the Garden' was a rather common term used in the mid 1500's to reefer to either affaires, or secret lovers.