Centuries of inbreeding among European royals caused the deformity

The House of Habsburg produced various Austrian and Spanish kings and queens - and they occupied the throne of the the Holy Roman Empire from 1438-1740.

What are all the examples of Habsburg inbreeding? Is Charles II of Spain the only one? - Quora

Royal intermarriage - Wikipedia

15 Exquisite Royal Portraits You Should Check Out

Centuries of inbreeding among European royals caused the deformity known as the 'Habsburg jaw

Centuries of inbreeding among European royals caused the deformity known as the 'Habsburg jaw

Centuries of inbreeding among European royals responsible for famous facial deformities seen in historical paintings

Royal portraits confirm Habsburg jaw was caused by inbreeding

16 Royals Who Suffered From Hereditary Mutations And Defects Caused By Inbreeding

Centuries of inbreeding among European royals responsible for famous facial deformities seen in historical paintings

Inbreeding behind facial deformity in one of history's largest royal dynasties, study says