We, the house of Habsburg, are a royal family that descend from the gods. Our founder, Cersei Habsburg, conquered Europe and brought peace and stability to the dregs of the continent. After taking her 3 brothers as husbands she founded the Habsburg dynasty. Our demigod status awards us the power of pyrokinesis and allows us an average lifespan of 500 yrs.
Other demigod families throughout the world demean themselves by frolicking with worthless commoners, inevitably diluting their demigod heritage and weakening their gifts. These unions produce half-breeds weakling creatures of inferior quality in comparison to the purebloods. We however have maintained our respectability be keeping it all in the family. The closer the blood relation, the closer that offspring is in association with its fore-bearers.
The Habsburg family are not ignorant of the dangers of inbreeding. However, we wish to keep our dignity intact instead of associating with lesser humans and allowing their genetic filth to taint our bloodline. Maintaining the upmost purity of our clan is essential to maintaining our demigod powers and our birthright that is Europe. How can we make this possible?