So two things, first off as I typed "Polygamists in History" I was reading it in my head in a big, deep echoey voice like the intro to the Muppets "Pigs in Space" segment. And the second is that I realize that this isn't my story but it is a real person's story so I put it here. Feel free to move it. So I have been interested for some time in finding the hidden western polygamists that I just know have existed through the ages but have flown under the radar. I have found a few , some of them I do not want to claim, like Sigmund Freud and Carl Marx. Others are quite exciting. My favorite so far has been John of Gaunt. Everything about this guy was amazing. He was the brother of an English king, the friend of Geoffrey Chaucer and one of the most powerful figures in Europe at the time. He was loyal too, never trying to chisel his nephew out of the throne once his brother had died. The most amazing thing about him though is that he was a bona fide living the life polygamist. He had two legal wives that followed in the normal course of these things but he also had a lifelong "mistress" named Katherine Swinford. He had children with all three women plus one more but Katherine taught all of the children and all of the children grew up knowing each other and were loyal to each other in later years, although the grandchildren got pretty antagonistic. Eventually Gaunt "married" Swinford and their children were legitimated by the church. All subsequent monarchs of England, Spain and Portugal are descended from this guy. I am sure that a perusal through the famous mistresses of history will turn up quite a few more of what we would call marriages. I'll keep looking and if anyone knows of others let me know please!