Is the surname a noble surname?

An surname was a businessman from the Western Regions in the Tang Dynasty, which is now Iranian and moved to China. An surname is not a traditional aristocrat in China. An surname is the 79th most popular surname in China, with a large population. At that time, the ancient Parthian country began to immigrate because of the war, and finally came to our Central Plains. I think everyone should have seen the movie "The Lion from Heaven", in which the rest country is Parthia, and the rest person is their name among the Han population.

Three views on the origin of surnames.

1. Xianbei people originated in the Northern Wei Dynasty: the Justin Reform in the Northern Wei Dynasty caused Xianbei people to change their Han surnames one after another, hence their surnames.

2. Sinicization of Manchu form: After Zhu Yuanzhang established the Ming Dynasty, in order to consolidate the rule over the frontier, especially the Manchu people left over from the previous dynasty, they were given surnames in order to keep them quiet, which is left over from now.

3. Originated from West Asian countries: Zhang Qian sent a mission to the Western Regions in the Han Dynasty, which opened the way for exchanges between the Han Dynasty and other countries. People from the interest country came to the Han Dynasty to trade, and some people stayed in the Han Dynasty, so they left a surname.