Fan Sizhe was Fan Jian's legitimate son. According to the information provided, Fan Sizhe had become Fan Jian's heir after his mother, Liu Ruyu, had been made his official wife. Although Fan Sizhe had an older 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.
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 the legitimate son because his mother, Liu Ruyu, had been made Fan Jian's second wife and had given birth to him. After Fan Jian's wife passed away, Liu Ruyu became Fan Jian's legal wife, and Fan Sizhe became Fan Jian's legitimate son. Fan Sizhe was Fan Jian's only son, and Fan Xian was Fan Jian's adopted son. They were not related by blood. Fan Sizhe's status was relatively high, but he had a certain fear of Fan Ruoruo. Perhaps it was because Fan Ruoruo was the daughter of the main wife of the Fan manor, so her status was even more special. Therefore, according to the information provided, Fan Sizhe was Fan Jian's legitimate son.
The difference between a legitimate son and a illegitimate son was mainly reflected in two aspects: the identity and status of the biological mother, and the difference in inheritance rights and rights. Di son was a child born by the wife, while Shu son was a child born by a concubine or aunt. The status of a legitimate son was higher, and he enjoyed more rights and benefits, including priority in the inheritance of the family. In the family inheritance, the eldest son had priority over the eldest grandson, the eldest grandson had priority over the second son, and the second son had priority over the illegitimate son. Sons of concubines had relatively lower inheritance rights and rights. They could only rely on legitimate sons to survive or gain social recognition through their own efforts. In ancient society, the difference between a legitimate son and a concubine's son was quite large. It involved family status, inheritance rights, social status, and so on.
The difference between a Di son and a Shu son was mainly reflected in their status and rights. Di sons were the children of the main wife. They had a higher status and had the opportunity to inherit their father's title, fief, official position, and property. A concubine's son was the child of a concubine or aunt who was lower than the main wife. Their status was lower and they usually did not have the opportunity to inherit the throne or important family property. In ancient society, legitimate sons enjoyed more advantages than illegitimate sons in terms of inheritance rights, social status, educational resources, family relationships, marriage choices, and legal protection. This difference was determined by the social structure and cultural concepts of the time. The difference between Di sons and Shu sons was also reflected in the order of inheritance. Di sons had priority over Shu sons. Generally speaking, the status of Di children was higher than that of Shu children, and they enjoyed more rights and advantages.
Di son referred to the son born by the wife, while Shu son referred to the son born by a concubine or mistress. Di sons enjoyed a higher status and rights in the family, including inheriting titles, fiefs, official positions, and property. Sons of concubines had no inheritance rights and could only rely on legitimate sons to survive or obtain fame and wealth through their own efforts. The difference between legitimate sons and illegitimate sons was very serious in ancient society, affecting their status and future development.
Fan Sizhe had become Fan Jian's legitimate son because his mother, Liu Ruyu, had been promoted to the second wife. After Fan Jian's wife passed away, Liu Ruyu was officially made his wife, and Fan Sizhe became the 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.
The difference between a legitimate son and a concubine's son was mainly reflected in their inheritance rights and status. Di son referred to the child born from the father and the wife, possessing unquestionable inheritance rights and the highest status. Whether it was the title of nobility or the family property, the legitimate son enjoyed the greatest inheritance rights. A concubine's son was a child born from a father and a concubine or aunt. They had no inheritance rights and could only inherit a small portion of their father's property. They could only be separated after their father died. In the family, the status of a legitimate son was much higher than that of a concubine's son. Whether it was treatment or reputation, they could not surpass a legitimate son. The status of a Di daughter was also much higher than that of a Shu daughter. When a Di daughter got married, she would have a more glorious treatment. Generally speaking, the legitimate son had the right of inheritance and the highest status in the family, while the illegitimate son had no right of inheritance and could only rely on the legitimate son to survive.
Sons of concubines usually addressed legitimate sons as " older brothers."
The difference between a Di son and a Shu son was mainly reflected in their status and rights. Di sons were the children of the emperor's main wife. They had a higher status and had the opportunity to inherit their father's title, fief, official position, and property. A concubine's son was the child of a concubine or aunt who was lower than the main wife. Their status was lower and they usually did not have the opportunity to inherit the throne or important family positions. The Di son bore the heavy responsibility of being the successor of the family and enjoyed more rights and priority. The rights of a bastard son were lesser, and the inheritance rights were also limited. The difference between Di son and Shu son was very important in the feudal society's patriarch system.