In the late fourth century AD, it became a part of Armenia for the second time in 384 and remained as such until 428 AD. Its area was much smaller than what is now called Kurdistan and was mainly concentrated in the south of Lake Van and around Diyarbakir.
During the late fourth century AD, the region experienced a second period of being part of Armenia, lasting from 384 to 428 AD. Its area was considerably smaller than modern-day Kurdistan and primarily encompassed the southern shores of Lake Van and the Diyarbakir region.