Plovdiv city was possibly at times a vassal of Bulgaria or Venice. Ivan Asen II conquered the duchy finally in 1230 but the city had possibly been conquered earlier. Afterwards, Plovdiv was conquered by Byzantium. According to some information, by 1300 Plovdiv was a possession of Theodore Svetoslav of Bulgaria. It was conquered from Byzantium by George Terter II of Bulgaria in 1322. Andronikos III Palaiologos unsuccessfully besieged the city, but a treaty restored Byzantine rule once again in 1323. In 1344 the city and eight other cities were surrendered to Bulgaria by the regency for John V Palaiologos as the
Plovdiv administrative structured units. According to the "Law for the territorial subdivision of the Capital municipality and the large cities," the territory of Plovdiv Municipality is subdivided into six district administrations with their mayors being appointed following approval by the Municipal Council. In 1969 the villages of Proslav and Komatevo were incorporated into the city. In 1987 the municipalities of Maritsa and Rodopi were separated from Plovdiv which remained their administrative center. In the last several years, the inhabitants from those villages had taken steps to rejoin the "urban" municipality. The city has more than 200 archaeological sites, 30 of which