obviously this title plays off "partners" somehow

…so the pharaoh whose personality overwrote Jalil's in the eponymous Miraculous Ladybug episode is canonically Tutankhamen

the most sense-making wrt documented history explanation of Pharaoh Atem's dynasty is, where RL scholarship puts Tutankhamen's, Yu-Gi-Oh! Duel Monsters canon puts Atem's

…suppose when Hawkmoth akumatized Jalil, he got (a post-Dark Side of Dimensions, most likely) Atem

(Jalil is still in there, but of course he is no Yuugi)

(no, I don't know anything about Yu-Gi-Oh! except Season 0 and Duel Monsters and a bitty bit of GX, why do you ask?)