However, Radoslav was succeeded by Mihailo, son of king Vladimir. In a letter from the Archbishop of Antivari Grgur, Stefan Nemanja, great župan of Raška, and his brothers Stracimir Zavidović and Miroslav of Hum, were described as Mihailo's "maternal uncles who are pressuring him much". The entire 12th century was a period of total turmoil in Duklja, with numerous royal changes and Bodin's inheritors were overshadowed by the more and more powerful neighboring Raška, starting from the rise under Vukan. Between 1113 and 1149 Duklja was the centre of Serbian–Byzantine conflict, with members of the Vojislavljević as protégés of either fighting each other for power. Some rulers of Duklja in this period were titled princes, while some retained the title of a king. Even Đorđe, son of king Bodin, had a seal which said "Đorđe, son of king Bodin", and not "King Đorđe". By January 1186, Stefan Nemanja finally conquered Duklja, annexing it to Raška. The faith of the final ruler of Duklja, Mihailo, os unknown, but in 1189 his wife Desislava is mentioned as being a widow. Duklja then became a crown land of Raška, subsequently becoming known as "Zeta", remaining so until the fall of the Serbian Empire in the 14th century. Members of the Nemanjić dynasty who governed Duklja-Zeta in this period, were given a titular title of king. The very first one, Vukan Nemanjić, appointed by his father Stefan Nemanja, was titled king (rex) of ""Duklja, Dalmatia, Travunija, Toplica and Hvosno"" ().