And it was recorded after he got married in 1870. In 1870, Zu Hang would not have known about this grandmother even if he was alive. So how did he know people's names? Before, he looked at the family tree and said that there were many things in the family tree that he didn't understand, but now he was able to add the name. Does it mean that Zu Hang had read the family tree before the name was wet with water? So did you read the family tree before you were torn? by