After the mother of a bastard son was promoted, the bastard son would become a legitimate son. According to the ancient system of Di Shu, the status of a child's Di Shu was related to the birth mother. If the mother became a legitimate wife, then the child's identity would also change from a concubine's son to a legitimate son. This situation was not common in ancient times because it was rare for concubines to be made official wives. However, once this happened, the status of the bastard son would change. Therefore, after the mother of the illegitimate son was restored, the illegitimate son would become the legitimate son.
A son born from a concubine was not a legitimate son. A concubine's son referred to a son born to a concubine, while a legitimate son referred to a son born to a legitimate wife. The status of a concubine's son was lower than that of a legitimate son. Generally, he could not accept the sacrifices of the ancestral temple and inherit the status of his father and grandfather. Therefore, the son of a concubine did not have the status of a legitimate son.
Fan Sizhe was Fan Jian's legitimate son. Fan Sizhe's mother, Liu Ruyu, was Fan Jian's wife, and Fan Jian had made Liu Ruyu his legitimate son. Di son referred to the child born by the first wife and enjoyed a higher status. Therefore, according to the information provided, Fan Sizhe was a legitimate son, not a bastard son.
Fan Sizhe was the legitimate son. Although his mother was originally a concubine of the Fan family, under normal circumstances, he should have been born a concubine. However, because the eldest lady of the Fan family had passed away and only left behind a daughter, Fan Ruoruo, Fan Jian later made Fan Sizhe's mother, Liu Ruyu, his official wife. Thus, Fan Sizhe became the legitimate son.
Fan Sizhe was the legitimate son. After Fan Sizhe's mother, Liu Ruyu, was made the official wife by Fan Jian, Fan Sizhe became Fan Jian's legitimate son. Although Fan Sizhe had an older brother before him, he died young, so Fan Sizhe became Fan Jian's heir. Fan Xian had thought Fan Sizhe was the illegitimate child of Fan Jian and a wild woman, but as long as Liu Ruyu was made official, Fan Sizhe would become the legitimate son and be qualified to inherit Count Sinan's title. Therefore, according to the information provided, Fan Sizhe was Fan Jian's legitimate son.
Fan Sizhe was the legitimate son. Although his mother was originally a concubine of the Fan family, Fan Jian only made her official wife after Fan Ruoruo, making Fan Sizhe the legitimate son. Fan Sizhe's status was thus confirmed.
According to the information provided, Fan Sizhe was Fan Jian's legitimate son. After Fan Sizhe's mother, Liu Ruyu, was made the official wife by Fan Jian, Fan Sizhe became Fan Jian's legitimate son. Although Fan Sizhe had an older brother before him, he died young, so Fan Sizhe became Fan Jian's heir. Therefore, Fan Sizhe was a legitimate son, not a bastard son.
Li Shimin was Li Yuan's legitimate son. Before the establishment of the Tang Dynasty, Li Yuan had four sons, including Li Shimin. Di son referred to the son born to the first wife, while Shu son referred to the son born to the concubine. According to the system of inheritance of the eldest son in ancient feudal society, the legitimate son was qualified to inherit the family business. Therefore, Li Shimin, as Li Yuan's legitimate son, had the qualifications to inherit the throne.
According to the information provided, Fan Sizhe was Fan Jian's legitimate son. After Fan Sizhe's mother, Liu Ruyu, was made the official wife by Fan Jian, Fan Sizhe became Fan Jian's legitimate son. Although Fan Sizhe had an older brother before him, he died young, so Fan Sizhe became Fan Jian's heir. Therefore, Fan Sizhe was a legitimate son, not a bastard son.
Fan Sizhe was Fan Jian's legitimate son. After his mother, Liu Ruyu, was made the official wife by Fan Jian, Fan Sizhe became Fan Jian's successor. Although Fan Sizhe had an elder brother before him, he died young, so Fan Sizhe became Fan Jian's legitimate son. Therefore, Fan Sizhe was a legitimate son, not a bastard son.
According to the information provided, Fan Sizhe was Fan Jian's legitimate son. After Fan Sizhe's mother, Liu Ruyu, was made the official wife by Fan Jian, Fan Sizhe became Fan Jian's legitimate son. Although Fan Sizhe had an older brother before him, he died young, so Fan Sizhe became Fan Jian's heir. Therefore, Fan Sizhe was a legitimate son, not a bastard son.