Definitely Sweet-Lolita styled dresses (and if I was a monarch, demanding they be in plus sizes would be a cinch!) or maybe mori-fashion
Traditional castles are fine with me. One inside a secret forest filled with gardens and flowers and little woodland creatures and good weather.
For food, every day would be a picnic with sandwiches, tea and cake.
and then it'd be back to work ruling my subjects with an iron fist.
edit - for Princes, I think this sums up what I'm looking for:
(Credit: Natzilla.tumblr.com)