The origin of Austrian surnames

There are few historical records about the origin of Austrian surnames. It is mainly changed by Otto, Otto, Oulu and Ori of ethnic minorities. Contemporary Shaanxi xi area, the source is unknown. There is also an Austrian surname in Shanxi, which is in the north of Lvliang, Shanxi. Weinan, Shaanxi Province, named Ao, belongs to ethnic minorities. According to historical records, it belongs to Mongolian and Xibe nationalities.