User blog comment:NefkaAlice/About Roderich a.k.a. Austria/@comment-112.198.138.20-20101204153834

Austria's hair curl stands for Mariazell, Austria's prominent Catholic region (cathedral). I'm not sure how this affects Austrian Catholic people, especially when Austria's hair curl gets disheveled or pulled... XD.

It is not mentioned in the anime whether his mole is an erogenous zone or not, but I believe it was stated somewhere in his manga introduction. :)