Why royal inbreeding was once considered ‘perfectly normal’ – 9Honey

Europe has been controlled by royal families for hundreds of years, setting up strategic marriages to boost the number of their allies. But sometimes these unions resulted in inbreeding, which meant family illnesses were easily passed down the bloodline, as well as any deformities.
Children inherit a mixture of the combined genetic material of their parents. But when the gene pools in two people are too much alike, there’s a much higher chance the child will inherit something sinister.
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