Resources:

https://www.discovermagazine.com/planet-earth/inbreeding-was-common-among-early-humans-skeletal-deformities-suggest

https://www.ancient.eu/Ptolemaic_Dynasty/

https://www.thoughtco.com/queen-cleopatras-family-tree-4083409

http://www.strangehistory.net/2013/12/25/14742/

https://www.historyanswers.co.uk/kings-queens/the-dangers-of-royal-inbreeding/

https://www.history.com/news/letters-may-prove-george-iii-was-mad\

https://www.medicalbag.com/home/features/grey-matter/impact-of-europes-royal-inbreeding-part-ii/

Transcript:

https://medium.com/@MeredithAncret/inbreeding-or-why-your-family-reunion-is-not-the-place-to-score-a-date-c519af0fe263

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