To think Northern European aristocracy all look quite similar?

[AppleStroodles]

They all seem to have a certain 'look', long pale angular/pointy faces, fair hair and long lithe limbs... Apart from the Queen perhaps... AIBU?

Well, they're mostly related, so no, YABU.

As most of them are Queen Victorias great/grandchildren, they would look alike!

That's mainly because they keep interbreeding.

The wives they choose all have the 'look' too, Kate, Harry's latest girlfriend, Diana and Edward's wife Sophie.

Interbreeding.
Or Cristal goggles....