"Phraates II (also spelled Frahad I; Parthian: 𐭐𐭓𐭇𐭕 Frahāt) was king of the Parthian Empire from 132 BC to 127 BC. He was the son and successor of Mithridates I (r. 171–132 BC).
Because he was still very young when he came to the throne, his mother Rinnu initially ruled on his behalf. His short reign was mainly marked by his war with the Greek Seleucid Empire, who under king Antiochus VII Sidetes (r. 138–129 BC) attempted to regain the lands lost to Phraates' father. Initially unsuccessful in the conflict, Phraates II managed to gain the upper hand and defeated Antiochus VII's forces, with the Seleucid himself dying in battle or committing suicide. Phraates II afterwards rushed to the east to repel an invasion by nomadic tribes—the Saka and Yuezhi, where he met his end. He was succeeded by his uncle Artabanus I." - (en.wikipedia.org 11.08.2021)