Helenus found the city of Buthrotum. After Neoptolemus left Epirus, he left Andromache and their sons in Helenus's care. Neoptolemus was killed by Orestes, Agamemmon's son, in dispute over Hermione, the daughter of Menelaus and Helen, whom Orestes had been promised as wife, but whom Neoptolemus had taken. As the kingdom of Neoptolemus was partitioned, this led to Helenus acquiring the rule of Buthrotum, as king. "Helenus, a son of Priam, was king over these Greek cities of Epirus, having succeeded to the throne and bed of Neoptolemus." Andromache bore him a son, Cestrinus, who is identified with Genger or Zenter,
2260 Neoptolemus by Pan-STARRS, while in the Tholen classification the body's spectral type is ambiguous, closest to a D-type and somewhat similar to a T-type asteroid, with a spectrum flagged as unusual and moderately noisy (DTU:). In August 1995, and in March 2002, two rotational lightcurves of "Neoptolemus" were obtained from photometric observations by Italian astronomer Stefano Mottola using the Bochum 0.61-metre Telescope at La Silla Observatory, Chile, and the 1.52-meter Loiano Telescope at the Observatory of Bologna, Italy, respectively. Lightcurve analysis gave a well-defined rotation period of 8.180 hours and a brightness variation of 0.20 and 0.32 magnitude, respectively (). Follow-up