Board Thread:Spoilers!/@comment-6175354-20140218233629/@comment-6175354-20140219055641

Prince of Hearts wrote: Hmm. Zelena. Regina. Huh. If they are sisters, now we know why the Wicked Witch hates the Evil Queen.

Regina was bred to be a queen, right down to her name. While Zelena has green skin, and a name to remind her of that deformity.