Daenerys Targaryen is not entirely one hundred percent pure Targaryen genetically, despite the dynasty's notorious history of aggressive sibling and close-family inbreeding designed to preserve bloodline purity. Over the centuries leading to her birth, various Targaryen kings and princes married outside their house into prominent Westeros and Essosi noble families—such as the Blackwoods, Martells, and Velaryons—introducing external genetic lines that made her lineage diverse.