Both women were born into royalty while the men were born as commoners but married into royalty.

When Snow and Charming first met, she attacked him, hitting him on the head with a stone, and he later trapped her in a net. When Emma and Killian first met, she attacked him, holding a knife to his throat, and later she tied him to a tree.

Both couples have also had one person showing that they recognised the other while that one is captive. Emma recognised Killian's alias of Captain Hook, while Charming showed Snow one of her wanted posters.

Mary Margaret was by David's side in the hospital when...