Artabanus IV was a king of the Parthian Empire, ruling from around 10 AD to 38 AD. He was part of the Arsacid dynasty, which was known for its conflicts with the Roman Empire and its efforts to maintain control over the vast territories of Parthia. During his reign, Artabanus IV faced challenges from both internal factions and external threats, particularly from the Romans. His rule is noted for its political instability, which ultimately led to his downfall and the rise of Vardanes I, his rival, marking a significant shift in Parthian power dynamics.