Generally, one's great-grandfather's permanent residence or birthplace is the birthplace, or one's great-grandmother (or great-grandmother, great-grandmother) is the birthplace.
China attached great importance to native place in ancient times;
In ancient China, native place was very important. Even if fathers and ancestors are senior officials, their children will still return to their hometown to participate in scientific research.
One day in July of the forty-second year of Qianlong, the emperor Qianlong, known as the "perfect old man", was 67 years old, but he was not confused at all. He still has the energy to meet Zhang Tingtai, a Zhejiang official who was unpaid in Shaoxing. In a word, a six-product official can see the face of the sun, which can be described as a mighty emperor.