With what as a POD though?
Armenia being a regional power in the 10th century is much more difficult than it being a regional power in the 1st (AD).
It could be as early as possible, but i would perfer one after 1AD.
Something where Armenia isn't squeezed between Rome (or something in its place) and the Persian-centric power would probably be necessary.
There are only so many possible fates there, and none of them are very good.
Nor is it really an area - despite the gold mines (which are nice for the "get rich, get a better army" Armored Diplomacy mentioned) - capable of supporting a formidable military force on the scale of such empires.
How about playing off the Romans and the Parthians against each other? The Armenians would definitely need a ton of luck in keeping their independence unless of course, they influence nearby steppe peoples like the Alans.
1. They need to be a vassal power at first, maybe?
2. Doesn't Armenia have diamond mines, silver mines and can also do pottery, glass making etc?
Tigranes had a good shot at it, but he had the VERY BAD idea of antagonizing the Romans. It is 1st century BC, anyway.
1: Maybe.
2: Probably. I do know it has gold mines - one of the reasons why OTL Armenia was worth absorbing.
So money is less the problem than that while the area produces good soldiers, it doesn't produce many soldiers.
So a situation where it has to face the superpowers of the day on both frontiers can't end well. If it has only one, it can focus its attention on them.
He was an Armenian King?
1. The Persians and Romans (Eastern and Western) fought over Armenia specifically for the gold mines, am i correct in that?
2. What was the population of the areas i mentioned in around 1AD-400AD? That would help in getting an answer.
He was an Armenian King?
Yeah. The most succesful of them, until the Legions showed up. IIRC, he had married Mithridates's daughter.
Wikipedia is quite informative on him.
1. The Persians and Romans (Eastern and Western) fought over Armenia specifically for the gold mines, am i correct in that?
2. What was the population of the areas i mentioned in around 1AD-400AD? That would help in getting an answer.
I am reluctant on trusting Wikipedia as the only source.