The following sources were consulted in the preparation of the article “10 royals who suffered from illnesses caused by inbreeding.”
- Carlos II of Spain, ‘The Bewitched’: cursed by aspartylglucosaminuria?
- Don Carlos: the tragedy of the king’s son
- The Habsburg Jaw—Re-examined
- Rudolf II: mental problems and gradual loss of power
- Ancestry and Pathology in King Tutankhamun’s Family
- Inbreeding and serious mental illness in the first Spanish Bourbons
- Mental health issues of Maria I of Portugal and her sisters: the contributions of the Willis family to the development of psychiatry
- The marriage of Portuguese King Pedro II and Maria Sophia of Neuburg
- Infante Philipp Prosper
