Lately I've become obsessed with obscure bits of Medieval geneology. While rearranging books on my office, I found a huge family tree of monarchs (etc.) of Great Britain and their affiliates. Spread out on the floor, (how better to study a family tree?) I pore over it, looking for the connection between Edmund of Langley and Bonnie Price Charlie.
Yes, I am a sick and twisted person. This kind of work and research pleases and excites me. Were this enough to qualify me for a PhD in history you would not have to read this entry. Alas and alack.
(Not that you're forced to read anything, you understand.)
I'm interested to see which kings merited princesses and which married illegitimate princesses - Llywelyn for example.