okay, so I told my boyfriend that sister theory and he put two and two better than I did. if Cora and Snow’s mom are sisters, and Cora later arranged for Regina to marry Leopold (Snow’s dad), Cora’s forcing her to marry her uncle. Totally didn’t think of that way when I thought about it — so um, scratch that theory for now.
But King Leopold and Cora did not acknowledge that they knew each other when she was conniving to get him to marry Regina! … much less that they were in-laws!