Henry VIII & his wives, Anne Boleyn, Elizabeth I
The Tudor line gets confusing with so many women named "Mary". Check out Henry's family tree to keep people straight. House of Tudor (pdf)
Mary Queen of Scots
House of Stuart (pdf) : coming soon...
Here's a fun game, see if you can count how many people are named Louis in this Bourbon family tree. And with so much inbreeding going on, it's no wonder that anything every got done. House of Bourbon (pdf)