When Queen Victoria was in command, she married her cousin and had over 40 kids/grand kids.

This is actually true, but it's so funny!

Then it's history, not a joke.

Not really that funny.

Incest was remarkably common in history.

Then it's history, not a joke.

Note how I said it's funny.

One of the most well known British queens was incest.

Here is something from Blackadder about Queen Victoria. Much more amusing in my opinion.

Captain Darling: I'm as British as Queen Victoria!

Captain Blackadder: So your father was German, you're half German, and you married a German?

Note how I said it's funny.

One of the most well known British queens was incest.

Nigh-Every monarch in European history was a product of, and contributor to Incest. That's how Royalty does things.

Cousin marrying is a much greater part of history than most realize.

Even the Somme is funnier than that.