I came across an Ancestry tree today which told me all kinds of things about my ancestor that I didn't know before!
I have him marrying just once with 14 children to follow, but according to this tree he married 6 times, including twice before he was born and twice on the same day to different women.
By one wife he had two children, one born before he (my ancestor) was born and the other 34 years later, and by another wife he had 34 children within 25 years. It seems the other 4 wives didn't produce any children, which may have been something of a relief to him.
How do people manage not to notice what utter rubbish they are adding to their trees?