King Kauikeaouli (Kamehameha III) https://en.wikipedia.org/wiki/Kamehameha_III and Princess Nahi'ena'ena https://en.wikipedia.org/wiki/Nahienaena
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/wiki/Cleopatra and Ptolemy XIII https://en.wikipedia.org/wiki/Ptolemy_XIII_Theos_Philopator
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/13138473

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

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

Chulalongkorn, King of Siam https://en.wikipedia.org/wiki/Chulalongkorn
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/wiki/Habsburg_Spain
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/wiki/Francis_II,_Holy_Roman_Emperor , Emperor of the Holy Roman Empire, and Maria Theresa of Naples and Sicily https://en.wikipedia.org/wiki/Maria_Theresa_of_Naples_and_Sicily
Both had the same grandparents, so they were double first cousins.

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

King George IV https://en.wikipedia.org/wiki/George_IV and Caroline of Brunswick https://en.wikipedia.org/wiki/Caroline_of_Brunswick
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/wiki/Philip_II_of_Spain and Queen Mary I of England https://en.wikipedia.org/wiki/Mary_I_of_England
Philip II of Spain and his wife were first cousins.

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

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

Charles https://en.wikipedia.org/wiki/Charles_III and Diana https://en.wikipedia.org/wiki/Diana%2C_Princess_of_Wales
Prince Charles and Lady Diana Spencer were actually seventh cousins.

Prince Edward https://en.wikipedia.org/wiki/Prince_Edward%2C_Duke_of_Edinburgh and Sophie Rhys-Jones https://en.wikipedia.org/wiki/Sophie,_Duchess_of_Edinburgh
The Earl of Wessex is married to Sophie Rhys-Jones. They are 11th cousins.

Queen Elizabeth II https://en.wikipedia.org/wiki/Elizabeth_II and Prince Philip https://en.wikipedia.org/wiki/Prince_Philip,_Duke_of_Edinburgh
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/wiki/Edward_VII and Queen Alexandra https://en.wikipedia.org/wiki/Alexandra_of_Denmark
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/wiki/Queen_Victoria and Prince Albert https://en.wikipedia.org/wiki/Prince_Albert_of_Saxe-Coburg_and_Gotha (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/wiki/Prince_Harry%2C_Duke_of_Sussex and Meghan https://en.wikipedia.org/wiki/Meghan,_Duchess_of_Sussex
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.