Genghis Khan was a very important and powerful person from a long time ago. He was kind of like a king, but he had a lot of big families that were related to him.
A family tree is like a map that shows how all the people in one family are related to each other. So, Genghis Khan's family tree is a very big map that shows all of his family members!
At the top of the family tree is Genghis Khan himself. He had a wife and many children, and each of those children had their own children, and so on.
But Genghis Khan had a lot of wives and had many different children with those wives. So, his family tree is really big and has lots of lines and branches.
Some of Genghis Khan's children became very powerful and had children of their own. This means that Genghis Khan has lots of descendants all over the world today!
So, even though Genghis Khan lived a long time ago, his family tree is still very important and helps us understand how he was related to all of his family members.