Belach was the firstborn son of Borias and his then wife Natassa. Xena seduced his father away from him as a young boy and he and his mother fell into servitude. Ever since, Belach equally despised Xena and Borias for the absence of fatherhood in his life. Belach bears the spitting image of his father.
In adulthood, he became Lord and married a woman, who died whilst giving birth to his daughter Nica. When his daughter fell in love with Xenan, the centaur son of Ephiny, he believed she was kidnapped by the Centaurs and ordered a ransom on Xenan's head for his daughter's return.
Xena vowed to Belach that she would return her to him but did not reveal her identity. Belach subsequently killed all the Centaurs and threw them into a pit.
When Xena capturesd Belach, she unveiled to him Nica's pregnancy with Xenan's child, which prompted Belach to recall Xena unceremoniously keeping him from interfering with her sexual affairs with his father when he was a child.
Xena attempted to clarify, claiming that notwithstanding his infidelity, Borias was a noble man at heart. Unwilling to accept that as an answer, Belach stated that the necklace given to him by his father stays as a disheartening reminder of his abandonment.
Belach captured Xenan while Nica was in labor delivering a boy. Xena further tried to persuade him that Borias died for his son Solan, resenting his treatment of his original family and refused to make the same mistake with Solan because of her.
Xena held herself accountable for the events, as Belach opted to forgive both Xena and his father and sets free Xenan. With Belach becoming a reformed man at peace and bidding his farewell with Xena, he also went on to gift Xenan and Nica a new home for their own tranquility raising their newborn son Borias II, named in honor of Borias.