Complex sentence: Not all Palmyrenes accepted the dominion of the royal family; a senator, Septimius Haddudan, appears in a later Palmyrene inscription as aiding Aurelian's armies during the 273 rebellion.
Split into simpler sentences: Not all Palmyrenes accepted the dominion of the royal family. A senator, Septimius Haddudan, appears in a later Palmyrene inscription as aiding Aurelian's armies during the 273 rebellion.