An ancient skull that was found in Turkey close to a century ago does not belong to Cleopatra's younger, rebellious sister, after all.

A new analysis of the ancient bone reveals it isn't even that of a 20-year-old woman. Instead, the skull belongs to a male who died between the ages of 11 and 14 and who "suffered from significant developmental disturbances."

"What we can now say with certainty is that the person buried in the Octagon was not Arsinoë IV, and the search for her remains should continue," write researchers at the University of Vienna in Austria.

The modern analysis topples a controversial hypothesis based on a teetering stack of assumptions.