Luciana
I liked how they portayed Luciana as a poor girl who was pushed into the marriage by her mother. She was such a kind and down to earth girl.
As for Ariana, She was a ugly pushy, nasty, scheming bitch. Seriously who would tap that? The legitimacy of her daughter is a bit hazy as she was only married the king for three days and he was sick and elderly so I don't know how they could of produced Luciana in that time frame.