Urartu () is a geographical region commonly used as the exonym for the Iron Age kingdom also known by the modern rendition of its endonym, the Kingdom of Van, centered around Lake Van in the historic Armenian Highlands (present-day eastern Anatolia). The kingdom rose to power in the mid-9th century BC, but went into gradual decline and was eventually conquered by the Iranian Medes in the early 6th century BC. The geopolitical region would re-emerge as Armenia shortly after. The Urartians are the most easily identifiable ancestors of the Armenians.