Hi read your review wanted to ask about this -> “Targaryen polygamy is right there if you needed it, Benioff and Weiss, and it fits Rhaegar’s “three heads of the dragon” thing way better,” what is the Targaryen Polygamy?

The Targaryens had a tradition of polygamous marriage (i.e, more than one wife per husband), another import from Old Valyria. Now, granted, that tradition fell away rather early, but it’s still there. 

My argument is that, based on what we know about Rhaegar’s fascination with the prophecy of the Prince Who Was Promised and his belief that this figure required “three heads” and how he named his children, it fits thematically better if he went back to that tradition to try to emulate Aegon the Conqueror in order to recreate him in his son.

As a bonus, if Rhaegar did go with polygamy, he parallels nicely with another Targaryen princeling whose ambitions outstripped his sense of caution and who plunged the realm into civil war as a result: Daemon Blackfyre, who some sources claim wanted to marry his half-sister Daenerys (hey, it’s that name again) in addition to Rohanne of Tyrosh. (Yet another parallel: if that had actually happened, you’d have the marriage out of duty and the marriage out of love replicated, with Rohanne:Visenya::Daenerys:Rhaenys…)