Deng Prefecture (Henan)

Deng Prefecture was a prefecture in imperial China surrounding modern Dengzhou in Henan, China. It existed intermittently from 587 to 1913. The modern city Dengzhou, created in 1988, retains the name of its former seat.
Geography.
The administrative region of Deng Prefecture in the Tang dynasty is in southern Henan, under the administration of Nanyang. It probably includes parts of modern: 