Later legends say that Arthur had three half-sisters: Morgawse, Elaine (Blasine) and Morgan le Fay. Morgawse had married King Lot of Orkney, Elaine (Blasine) was married to King Nentres of Garlot, while Morgan was wife of King Urien of Gorre, brother of Lot. But Morgan Le Fay was the best known.
his half sister
half monkey half dinosaur
That was King Soloman.
the half man half scorpion is called the scorpion king
king tut was married to his half sister.
King Tut's half sister's name was Ankhesenpaaten (aka Ankhesanamum) she was also married to him.
King Williams half brother is called prince Henry because he has not became a king yet but when king William dies Henry will take place at the throne instead.
King Tut married his half-sister Ankesenpaaten.
Cecrops I was the first king of Athens. He is mythologized as half man and half serpent. He brought the tradition of marriage to Athens.