The supported name forms are “Dong Duong” and “Đồng Dương”. The Russian-language source also gives the form “Донгзыонг”.
Đồng Dương is a ruined Buddhist monastery complex in Central Vietnam.
Coordinates: 15.707° north latitude, 108.2249° east longitude. The source gives an approximate coordinate precision of 0.0933°.
The complex is dated to approximately 875; this is not an exact date.
The administrative subdivision is not expanded in the supplied verified facts. To check the current administrative context, compare the coordinates with an official Vietnamese administrative map or an up-to-date record from a local heritage authority.