epigone (n.)

also epigon, "undistinguished scion of mighty ancestors," (sometimes in Latin plural form epigoni), 1865, from Greek epigonoi, in classical use with reference to the sons of the Seven who warred against Thebes; plural of epigonos "offspring, successor, posterity," noun use of adjective meaning "born afterward," from epi "close upon" (in time), see epi-, + -gonos "birth, offspring," from root of gignesthai "to be born" related to genos "race, birth, descent" (from PIE root *gene- "give birth, beget," with derivatives referring to procreation and familial and tribal groups).