Crash the dynasty because of inbreeding

A dynasty that once ruled over vast lands in Europe, including Spain, for nearly 200 years was annihilated by the last emperor who had no children because of the same marriage tradition.

The Habsburg family once ruled Austria for more than six centuries. Later, through marriages with other royalty, they continued to rule Bohemia, Hungary and Spain.

King Charles II of Spain.

Charles Second was the last king of the Habsburg dynasty. He was short and sick. In addition to intestinal diseases, this emperor also suffers from bloody and infertility diabetes. It was not until he was 4 years old that he spoke and he was 8 years old. When Charles II died in 1700 at the age of 39, the Habsburg dynasty also collapsed.

A recent study found that the tradition of marrying the Habsburg kings of the kings made Charles II incapable of giving birth and being susceptible to illness.

Previously, Philip was the founder of the Habsburg dynasty in 1516 when he married the daughter of Ferdinand and Elizabeth - the rulers of Spain. Due to the fact that they did not want power to fall into another family, the Habsburg dynasty stipulated that royal members were only allowed to marry their people. Of the 16 kings of this dynasty, 9 were married to women in the lineage - including two weddings between his uncle and grandson, a marriage between cousins.

Many scientists affirmed that the Habsburg kings married close relatives left terrible consequences. Their last follower, King Charles II was physically ill. He married twice but could not have children and died of illness.

To prove this statement, experts from Santiago de Compostela University (Spain) studied the genealogy of Charles II and nearly 3,000 of his relatives. If two blood relatives marry each other, their children will have a high probability of owning two identical genes on one chromosome (one from the father and the other inherited from the mother).

The team found that the probability of possessing two identical genes on a Habsburg chromosome increased rapidly through each generation, from 0.025 to Philip First to 0.254 with Charles II. The probability of Charles II often occurs in incest marriages (parents with children or siblings with younger sisters).

Charles II was the son of King Philip Quaternary and Mariana - his niece and Austrian princess. Philip Four's father Philip Third is also the result of a marriage between his uncle and grandson. Thus, inbreeding between Charles II's parents and the tradition of the kinship of previous kings played an important role in the destruction of the Habsburg dynasty.

This conclusion is supported by the fact that the Habsburg infant mortality rate is very high. Only about 60% of babies live over a year and half of them die before they are 10 years old. Meanwhile, the average survival rate of Spanish children at that time was 80%.

After Charles II died, Bourbon dynasty in France took control of Spain.