Should

Please note that these are all based on things I have actually heard, been told or run into in my readings.

Mary Queen of Scots was NOT Elizabeth I's sister. Neither was she Bloody Mary. Nor was she Mary Tudor.. (I hope I've cleared this up once and for all.)
A salat is not served with croutons.
Henry VI and Henry IV are not interchangeable. Ditto for Edward IV and Edward VI. And I'm not even going to start on the Louises.
Bonnie Prince Charlie 1) is clean out of period and 2) has virtually nothing to do with the Wars of the Roses.
Joining this organization does not give you a license to wave sharp pointy objects in public.
Very few people can get through a keg of ale in one sitting (though many have tried.)
Ms. usually means manuscript, though occasionally it means Mistress.
A Mistress rarely becomes such because she sleeps with the King.
Some Masters are into leather; but not THAT KIND of leather (in public anyway.)
You don't have to do what the King says; but it's considered polite to do so.
On the other hand you do have to do what the Marshals say or the nice man won't let you hit anyone with a stick anymore.
Being a King\Duke\Baron\Peer\Great Officer of State will get you a cup of coffee if you give the waitress a buck.
Squires are not really slaves. They have virtually no market value. Same goes for apprentices and proteges.
We don't all spend our evenings getting drunk. Someone has to drive home.
There was too a Russia in the middle ages. Ask any Mongol. Politely.
The non-pointy end of a sword is NOT called a handle.

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