Why was Su Dongpo buried in Sansufen?

"Three Sus" refers to Su Shi, Su Zhe brothers and their father Su Xun.

The origin of Su San's Tomb: Su Zhe knew Ruzhou in Shao Shengyuan (AD 1094). During this period, Su Shi moved from Dingzhou to Yingzhou, passed by Ruzhou and met his brother. Su Zhe showed his brother around the places of interest in Ruzhou. Tancheng County belongs to Ruzhou, and it has been known as the land of dragons and phoenixes since ancient times, and the Tiantai of Huangdi Jun is even more famous. The two brothers boarded the Tiantai of Jun, overlooking the Lotus Mountain in the north. When they saw Lianhua Mountain descending, it looked like Mount Emei in their hometown, so they agreed to take it as their destination. In the first year of Guo Jing, Zhong Jian (A.D.11), Su Shi died in Changzhou, leaving a will and being buried in Shangrili, Juntai Township, Tancheng County, Ruzhou. The following year, his son Su Guo transported his father's coffin back to Tancheng County for burial. In the second year of Zheng He (A.D.112), Su Zhe died in Yingchang, and his son was buried with Su Shi, which was called "Su 'er Tomb" in history. Su Xun was buried in Yumei, the hometown of Meishan. In the winter of the tenth year of the Yuan Dynasty (A.D. 1350), Yin of Tancheng County paid a visit to Sufen, saying that "the learning of Er Gong was actually taught by his father, Mr. Quan. Although the mausoleum faces each other thousands of miles away, it is bound to decline at the turn of the soul." So the cenotaph in Su Xun was placed on the right side of the two cemeteries. In this way, the original tomb of Sur became the tomb of Susan.