A man is shot for not standing up against the enemy or his wife?
There is a scene in this series when a Royalist couple comes under siege by the Roundheads. The Roundheads tell them that if they simply leave then there will be no need to fight. The husband announces that he will fight and tells his wife to leave and join the King at Oxford. The wife refuses to leave unless he goes with her or else she will stay and fight as well. The husband finally gives in and they go to Oxford together.
In Oxford the King is told this story and tells the wife that she will not be welcome at court again. He then tells the husband that he should have stood up to her and he is taken out and shot.
Is this fiction or does it have a basis in reality?