The grandson of a grandson is the son of a son, also known as the son of a great-grandson, or the grandson of a grandson, or the great-grandson of a son. It's for the fourth grandson, called great-great-grandson.

Great-great-grandson is called Sun Yuan in some places and Bang Sun in others.

Related introduction:

Giving birth to a boy is called "amusing" and giving birth to a girl is called "amusing".

"Zhang" is a good jade with an oblique acute angle on the top. It is a ritual vessel used by ancient nobles for weddings, sacrifices and funerals. Playing for his son Zhang, on the one hand, I hope he has jade-like character, on the other hand, I hope he will become an aristocrat and be able to "honor his ancestors". Later, I called having a boy "the joy of playing tricks."

"Tile" is a part of a spinning wheel. Playing with my daughter "Wa" is in the hope that she will be qualified for needlework in the future. Therefore, "Nongzhang" means having a son and "playing with tiles" means having a daughter.