The research on genetic disorders often highlights the complexities of inheritance and the effects of family relationships. Inbreeding, which results from marriages between close relatives, can have serious consequences, especially when these marriages are repeatedly contracted within a family. The case of the Spanish Habsburg dynasty clearly illustrates this phenomenon, where regular cousin marriages led to the exacerbation of a rare genetic disorder, ultimately resulting in the extinction of the dynasty. Studies show how the accumulation of genetic problems can significantly impact the health and development of offspring. The Effects of Inbreeding The effects of inbreeding can be particularly concerning, as marriages between closely related individuals lead to a homogenization…