Game of Thrones incest: Three reasons the Targaryens can’t survive without incest

HOUSE OF THE DRAGON’s Targaryen Dynasty is most famous for dragons and incest but don’t compare them to Jaime and Cersei Lannister. Game of Thrones author George RR Martin explained why he created the Valyrian family that way. There are three major reasons why the Targaryens insisted on marrying close relatives, including brothers and sisters.
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