The fairytale is from German. Plus, her outfit and Snow's looks similar in style. I hear that her and Snow's dresses commonly used in traditional German (I don't know it's true or not).

She's wearing a dirndl which is a traditional German dress.

yup, looks german. I'd love to know why u included irish here? is t becasue of the kngdom dance?

^ Yes, that and she's on an island of Corona which some users have given many arguments for being based on Ireland.

Honestly? A mix. she has a very American look, like a mix of English, German, and maybe Hungarian or Swedish. I suppose that was their intention, as they wanted her to have a fresh, innocent look in contrast to Gothel, and nothing says fresh innocence like an all-American blonde.

^ Well, they definitely made her blonde because that was part of her original story, and not for her image. But she does look very innocent - I think it's the size of her eyes.

Definitely! She doesn't look very Irish to me