Fifty full years after King Tut’s ... was the body of King Thutmose II himself. It was found in 1881, within a site officially known as TT320—or, colloquially, as the Royal Cache—in Deir ...

The researchers came to this 'unexpected' conclusion after analyzing the DNA of 11 mummies believed to be related to King Tut. In ancient Egypt, inbreeding was extremely common in royal families.