Nephew or niece referred to the nephew or niece of his wife's family. According to the information provided, a nephew or niece was the nephew or niece of a man's wife. This title was used to differentiate between one's own nephew or niece.
In ancient times, when introducing one's family members, they would often address them as young master, young master, grandfather, father, mother, madam, and so on. These titles all contained the demeanor of a noble or young master. Young masters and young masters referred to the children of the nobles, while fathers referred to the elders in the family, while mothers and madams referred to the female elders. These titles all had strong cultural implications. When used, they needed to be chosen according to the specific situation.
First, it's important to have an open and honest conversation with your son. Let him know that such stories are not appropriate for his age. Explain the values of respect and healthy relationships.
His father was called the Heavenly Ancestor. Gaozu's father was called the Heavenly Ancestor. According to the records in Er Ya, the one who gave birth to him was his parents, the father of his father was his grandfather, the father of his grandfather was his great-grandfather, the father of his great-grandfather was his great-grandfather, and the father of his great-grandfather was his great-grandfather. Thus, the title of the great-great-grandfather's father was Heavenly Ancestor.