Editing Wallachia (section)

=== Nineteenth century and union with Moldavia ===
The Russo-Turkish wars repeatedly brought foreign armies into Wallachia during the eighteenth and early nineteenth centuries. The uprising led by Tudor Vladimirescu in 1821 ended the Phanariote system. Native princes returned, although Wallachia remained under Ottoman suzerainty.

The Treaty of Adrianople in 1829 reduced Ottoman economic control and increased Russian influence over the principality. The Organic Regulation introduced a new administrative framework in 1831. It formalized government offices and strengthened the political position of the boyars while placing Wallachia under Russian supervision.

A revolutionary government took power in Bucharest during the Wallachian Revolution of 1848. It called for political reform and wider civil rights, but Ottoman and Russian intervention ended the movement. Support for union with Moldavia continued during the following decade.

In 1859, the assemblies of Moldavia and Wallachia elected Alexandru Ioan Cuza as prince. The shared ruler created a political union between the two principalities. Their administration was unified in 1862, when Bucharest became the capital of the United Principalities. Wallachia thereafter continued as a historical and geographic region rather than a separate state.