I sooo adore Alice and Wonderland. It has always been my favorite tale.
How about the Queen of Hearts being Regina’s older sister? Regina would never be able to be a queen because her older sister would inherit the title first. Regina would have to be married into a different kingdom / regime.
Just a thought.
And that’s exactly the story you’re going to see next week in the episode Stable Boy! (Minus Regina having an older sister.)