This was apparently first published in February but I don't recall it being mentioned here.
https://www.sciencealert.com/archaeologists-in-turkey-have-uncovered-a-mysterious-ancient-kingdom-lost-in-history
A Luwian inscription is thought to record a conquest of Phrygia. They have tied this to the Midas of the stories.
I don't think this is anything to do with the two ass's head hieroglyphs :) I know nothing of Luwian and thought it odd that the only natural looking hieroglyphs on the inscription are those heads. A quick look at an online book does mention this hieroglyph though - it either does mean a donkey or is the syllable ta-.
P.
Intriguing, thanks. The U of Chicago's own version at https://news.uchicago.edu/story/oriental-institute-archaeologists-help-discover-lost-kingdom-ancient-turkey says that:
QuoteThe OI's linguistic analysis suggested the stele was composed in the late-eighth-century B.C., which lines up with the time that Midas ruled.
It also says an older stele "refers to a King Hartapu, but no one knew who he was—or what kingdom he ruled". The Wikipedia page referenced by the ScienceAlert article, https://en.wikipedia.org/wiki/Hartapu, refers to Hartapu of Tarhuntassa; but since it also suggests he was son to a 13th-century king, we may be dealing with two different Hartapi.