In Antiquity, Gobryas was best known for the canals he had dug or repaired. Several cuneiform tablets are related to this activity, and more than six centuries later, the Roman author Pliny the Elder knew of a "prefect" named Gobares who cut a canal to protect Babylonia from the Euphrates flooding.note[Pliny the Elder, Natural history 6.120.]
It is unclear whether Gobryas was still alive in the eventful year 522, when Gaumâta seized power in the Achaemenid empire, Cambyses died, Darius killed Gaumâta and became king, and the Babylonians revolted against their Persian overlords under their new king Nidintu-Bêl. Maybe Gobryas was killed during this rebellion.
Gobryas had a son Nabûgu.