"Vonones I (ΟΝΩΝΗΣ Onōnēs on his coins) was an Arsacid prince, who ruled as King of Kings of Parthian Empire from 8 to 12, and then ...
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subsequently as king of Armenia from 12 to 18. He was the eldest son of Phraates IV (r. 37–2 BC) and was sent to Rome as a hostage in 10/9 BC in order to prevent conflict over the succession of Phraates IV´s youngest son, Phraataces." - (en.wikipedia.org 18.10.2020)
