Fan Sizhe was born by his aunt. Why is he a legitimate son?

Fan Sizhe had become Fan Jian's legitimate son because his mother, Liu Ruyu, had been promoted to the second wife. Although Fan Sizhe's mother wasn't Fan Jian's first wife, after Fan Jian's first wife passed away, Liu Ruyu was made the second wife, and Fan Sizhe became the first wife. In order to protect Ye Qingmei's child, Fan Jian not only sacrificed his own son but also used Fan Ruoruo as Fan Xian's shield. Fan Ruoruo was sent to Danzhou to live with Fan Xian. It was Fan Jian's arrangement to protect the secret of Fan Xian's life. Although Fan Sizhe had an older brother, he died young, so Fan Sizhe became Fan Jian's heir, the legitimate son. Therefore, Fan Sizhe was a legitimate son, not a bastard son.

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.

Fan Sizhe had become Fan Jian's legitimate son because his mother, Liu Ruyu, had given birth to him after she had been made the second wife. After Fan Jian's wife passed away, Liu Ruyu was promoted to the position of wife, and Fan Sizhe became the legitimate son. In order to protect Ye Qingmei's child, Fan Jian not only sacrificed his own son but also used Fan Ruoruo as Fan Xian's shield. Fan Ruoruo was sent to Danzhou to live with Fan Xian. It was Fan Jian's arrangement to protect the secret of Fan Xian's life. In order to protect his son Fan Sizhe's position and the Fan manor's property, Liu Ruyu had tried to stop Fan Xian from returning to the capital and tried to poison him, but she had failed. Thus, Fan Sizhe became Fan Jian's legitimate son.

Fan Sizhe was the legitimate son because he was Fan Jian's biological son, and Fan Xian was Fan Jian's adopted son. They were not related by blood. Fan Sizhe's mother was Liu Ruyu, Fan Jian's concubine, but after Liu Ruyu was made official, Fan Sizhe became Fan Jian's legitimate son. Fan Jian only had one wife and one concubine, so Fan Sizhe was the only heir to the Fan family.

Fan Sizhe had become Fan Jian's legitimate son because his mother, Liu Ruyu, had given birth to him after she had been made the second wife. After Fan Jian's wife passed away, Liu Ruyu was promoted to the position of wife, and Fan Sizhe became the legitimate son. Fan Jian only had one wife and one concubine, so Fan Sizhe was the only heir to the Fan family.

Fan Sizhe had become Fan Jian's legitimate son because his mother, Liu Ruyu, had given birth to him after she had been made the second wife. After Fan Jian's wife passed away, Liu Ruyu was promoted to the position of wife, and Fan Sizhe became the legitimate son. Fan Jian only had one wife and one concubine, so Fan Sizhe was the only heir to the Fan family.

Fan Sizhe was Fan Jian's legitimate son because his mother, Liu Ruyu, had been made Fan Jian's second wife and had given birth to Fan Sizhe. 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 the only heir to the Fan family.

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.

Fan Sizhe was the legitimate son. Fan Sizhe's mother, Liu Ruyu, had been made the official wife of Fan Jian and had given birth to him, making him the legitimate son of Fan Jian. Fan Jian only had one wife and one concubine, so Fan Sizhe was the only heir to the Fan family. Although Fan Sizhe had an elder brother before him, he died young, so Fan Sizhe became Fan Jian's legitimate son.

Fan Sizhe was Fan Jian's legitimate son. His mother was Liu Ruyu, Fan Jian's concubine, but after Liu Ruyu was officially made the second wife, Fan Sizhe became Fan Jian's legitimate son. Fan Jian only had one wife and one concubine, so Fan Sizhe was the only heir to the Fan family.