2, from "Zuo Zhuan - Lamenting the sixteenth year of the Duke": "Wangsun if the peace and quiet of the state of Chu, correct the royal family, and then shelter. Kai's wish."

3, another refers to Han Yan, the favorite of Emperor Wu of Han Dynasty. Han Shu - sycophant biography: "Han Yan word Wang Sun, bow high marquis deciduous grandson also."

4, "The Records of the Grand Historian - Huaiyin Hou Liezhuan": "I grieve for Wang Sun and eat, do not expect to be rewarded?" Sima Zhen Suo Yin quoted Liu De said: "The end of Qin more than lost the country, the words of the king's grandson, the son, also honored." Selected Writings - Zuo Si Shu Du Fu> ":" There are Xishu Gongzi, said in the East Wu Wangsun." Li Shan cites Zhang Hua's Museum: "Wangsun and Gongzi are words of mutual respect." Song Su Shi's poem "Sending Zeng Zhongxi to the Capital as a General Judge": "It should be the king's grandson who goes to the upper country, and the beads and jade sections and the rows of government offices."