In the beginning it states that England is under threat against Spain wanting to overtake the English throne. This is untrue as they wanted to play Mary Queen of Scots, a known Catholic, on the throne to replace Elizabeth but Philip never outwardly spoke of wanting it for himself because he knew he would be at war with the Scottish and the French if he took it because of Mary's close lineage to the English succession.
Elizabeth never met Mary Queen of Scots. They were known to have written to each other, but the meeting portrayed in this episode never happened.
In reality, Robert Dudley did not die with Elizabeth present, or anywhere near her. He was ill and left court to try to help his illness. Elizabeth did receive a letter from him days before that she did keep with her for the rest of her life.
Sir Walsingham: (of the returning Earl of Leicester) On whose side is he, in this matter of the Queen of Scotland?
Lord Burghley: I imagine he's on the side of the Earl of Leicester.
Mary Queen of Scots: You were not announced.
Queen Elizabeth I: I am not here.
William Cecil, Lord Burghley: The bloody and deceitful man shall not live out half his days.
Queen Elizabeth I: A man can be a good Catholic and a good Englishman.
Earl of Leicester: Not at the same time, Ma'am.
Queen Elizabeth I: I know that I have the body of a weak and feeble woman, but I have the heart and stomach of a King - and of a King of England, too.
Queen Elizabeth I: What in God's name do we have in common with the Dutch?
Earl of Leicester: We have our religion, ma'am!
Queen Elizabeth I: The Dutch have no religion, they have cheese.
Queen Elizabeth I: If you can't read my silence, you're nothing!
The episode won an Emmy Award for Outstanding Single-Camera Picture Editing for a Miniseries or a Movie.
Filming for this miniseries took place in Lithuania.