The First Bulgarian Empire acquired Kosovo by the mid 9th century, but Byzantine control was restored by the late 10th century. In 1072, the leaders of the Bulgarian Uprising of Georgi Voiteh traveled from their center in Skopje to Prizren and held a meeting in which they invited Mihailo Vojislavljević of Duklja to send them assistance. Mihailo sent his son, Constantine Bodin with 300 of his soldiers. After they met, the Bulgarian magnates proclaimed him "Emperor of the Bulgarians". The uprising was defeated by Nikephoros Bryennios. Demetrios Chomatenos is the last Byzantine archbishop of Ohrid to include Prizren in his jurisdiction until 1219. Stefan Nemanja had seized the area along the White Drin in 1185-95 and the ecclesiastical split of Prizren from the Patriarchate in 1219 was the final act of establishing Nemanjić rule. Konstantin Jireček concluded, from the correspondence of archbishop Demetrios of Ohrid (1216–36), that Dardania (modern Kosovo) was increasingly populated by Albanians and the expansion started from Gjakova and Prizren area, prior to the Slavic expansion.