Visualizing the complex Targaryen dynasty family tree with multiple consanguineous sibling marriages, inheritance of the throne, and notable descendants from Aegon I to Daenerys, including Jon Snow's secret lineage.
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Used Roman-numeral generation labels (I-1, II-3, etc.) as per NSGC convention for clinical pedigrees.
Marked consanguineous unions (sibling and uncle-niece) with '==' operator to reflect Targaryen incest practices.
Included 15 generations and 30+ individuals to represent a 'complete' dynasty tree while maintaining readability.
Explicitly declared all individuals before relationships to avoid unknown references.
Used 'deceased' life status for historical figures and left living characters (Daenerys, Jon) without it.
Reuse this structure for other dynasty or noble family trees that involve complex intermarriage, consanguinity, and long lineages spanning many generations. Adjust individuals, attributes, and couple operators as needed.