Career
Under the Prince Miloš he was a customs official, and during the first reign of Prince Mihailo district chief In 1842, when Toma Vučić-Perišić rebelled in favor of Constitution, the military tries to help the prince, but without success. Under Prince Alexander Karađorđević, Mihailović engaged in trade in Jagodina.
During the Saint Andrew"s Day Assembly in 1858, Mihailović was the leader of the Obrenović faction and led the delegation that demanded the abdication of Prince Alexander Karađorđević.
After return of Miloš in 1858, he became president of the Council, while under Mihailo retired. In 1875, and from 1876 until 1878, Mihailović became the Prime Minister.
This second Mihailovic government led the country during the Serbo-Turkish War of 1876–1878, and also led to Serbia"s territorial expansion and independence at the Congress of Berlin.