 Prior to the 1980s , the earliest known inscription <unk> king Odaenathus was dated to 257 , leading traditional scholarship to believe that Hairan Ras of Palmyra is the father of the king and that Odaenathus I was his grandfather . However , an inscription published in 1985 by archaeologist Michael <unk> and dated to 252 mentions king Odaenathus as a " Ras " and records the same genealogy found in the sepulchral inscription confirming the name of king Odaenathus ' grandfather as <unk> <unk> . <unk> , it is certain that king Odaenathus is the builder of the tomb ruling out the existence of " Odaenathus I " . Ras Hairan mentioned in the 251 inscription is identical with Odaenathus ' elder son and co @-@ ruler prince Hairan I. 
