Marriage between dynasties could serve to initiate, reinforce or guarantee peace between nations. Alternatively, kinship by marriage could secure an alliance between two dynasties which sought to reduce the sense of threat from or to initiate aggression against the realm of a third dynasty.

Why did aristocrats marry their cousins?

These royal kissing cousins had a clear purpose: to keep power and prestige in the family for as long as possible.

Did the royals used to marry their cousins?

King George V and Queen Mary: 2nd cousins Like his father, King Edward VII, and his grandmother, Queen Victoria, King George V married his cousin, in this case, his second cousin, Mary of Teck. George V: George, being the son of King Edward VII, was the great-grandson of King George III.

Was there inbreeding in the royal family?

Inbreeding May Have Been a Practice of Old Royal Families but That Isnt the Case Today. From a scientific perspective, theres a coefficient of separation or a coefficient of inbreeding that determines whether or not two mates have a higher chance of producing offspring without deleterious health issues.