King Kauikeaouli (Kamehameha III) https://en.wikipedia.org/w... and Princess Nahi'ena'ena https://en.wikipedia.org/w...
It is believed that Kamehameha (the founder and first ruler of the Hawaiian Kingdom) and his sister Nahi'ena'ena were secretly married.

Cleopatra https://en.wikipedia.org/w... and Ptolemy XIII https://en.wikipedia.org/w...
Both were brother and sister and became co-rulers of ancient Egypt.

❗Well, this is not a complete list....but if there is a mistake somewhere, I will be very happy if you send me a correction in the comments.

Those idiots didn't understand one very important and essential thing. 👇
In the old writings, where the marriages of sisters and brothers are described, incest is not meant, but the preservation of the same human species, which will thus remain untainted.
👉 Which again confirms that not everyone who looks like a human is a pure human.
https://anonup.com/thread/...

Princess Victoria Melita of Saxe-Coburg and Gotha (Gothai !) https://en.wikipedia.org/w...
Princess Victoria Melita married her first cousin, Grand Duke Ernest of Hesse https://en.wikipedia.org/w... . She then divorced and married another cousin, Grand Duke Kirill Vladimirovich of Russia https://en.wikipedia.org/w... .

The Emperor of Guangxu https://en.wikipedia.org/w...
The Chinese Emperor Guangxu married his first cousin Xiao Ding Jing https://en.wikipedia.org/w... .

Chulalongkorn, King of Siam https://en.wikipedia.org/w...
The Siamese king Chulalongkorn is estimated to have had 153 wives, consorts and concubines. Among them were his four half-sisters.

Spanish Habsburgs https://en.wikipedia.org/w...
The Habsburg family is particularly famous for its marriages. As a result, they are famous for a genetic trait known as mandibular prognathism (prominent jaw). Marriages in the family have led to some really complicated and bizarre situations. For example, Charles II of Spain's mother, Mariana of Austria, was also the niece of his father, Philip IV of Spain.

Francis II https://en.wikipedia.org/w... , Emperor of the Holy Roman Empire, and Maria Theresa of Naples and Sicily https://en.wikipedia.org/w...
Both had the same grandparents, so they were double first cousins.

Maria I of Portugal https://en.wikipedia.org/w... and Pedro III. https://en.wikipedia.org/w...
Maria I of Portugal married her uncle Pedro, who was her father's brother.

King George IV https://en.wikipedia.org/w... and Caroline of Brunswick https://en.wikipedia.org/w...
King George IV and Caroline of Brunswick were first cousins. They married in 1795 but separated a year later.

Philip II of Spain https://en.wikipedia.org/w... and Queen Mary I of England https://en.wikipedia.org/w...
Philip II of Spain and his wife were first cousins.

Henry VII https://en.wikipedia.org/w... and Elizabeth of York https://en.wikipedia.org/w...
King Henry VII married his third cousin Elizabeth of York.

Empress Elisabeth https://en.wikipedia.org/w... and Emperor Franz Joseph I of Austria https://en.wikipedia.org/w...
The Emperor married his 16-year-old cousin from his first marriage, known as Sisi.

Charles https://en.wikipedia.org/w... and Diana https://en.wikipedia.org/w...
Prince Charles and Lady Diana Spencer were actually seventh cousins.

Prince Edward https://en.wikipedia.org/w... and Sophie Rhys-Jones https://en.wikipedia.org/w...
The Earl of Wessex is married to Sophie Rhys-Jones. They are 11th cousins.

Queen Elizabeth II https://en.wikipedia.org/w... and Prince Philip https://en.wikipedia.org/w...
Queen Elizabeth II and Prince Philip are related through Queen Victoria. They are therefore third cousins. But both are also related to King Christian IX of Denmark. Prince Philip had the same great-grandfather as Queen Elizabeth's father. This makes them second cousins as well.

King Edward VII https://en.wikipedia.org/w... and Queen Alexandra https://en.wikipedia.org/w...
Following the example of his mother (Queen Victoria), King Edward VII married his cousin, although he and Alexandra of Denmark were third cousins.

Queen Victoria https://en.wikipedia.org/w... and Prince Albert https://en.wikipedia.org/w... (Gothai !)
Queen Victoria and Prince Albert had the same grandfather, Francis, Duke of Saxe-Coburg-Saalfeld. They are therefore first cousins.

Harry https://en.wikipedia.org/w... and Meghan https://en.wikipedia.org/w...
It may surprise many, but Meghan Markle and Prince Harry are reportedly distant cousins. The couple are related through County Durham High Sheriff Ralph Bowes, a 15th century ancestor of the Queen Mother.