Russia's influence waxed in Walachia and Moldavia as Ottoman power waned. In 1739 and 1769 the Russians briefly occupied the principalities. Then in 1774, Catherine the Great agreed to return Moldavia, Walachia, and Bessarabia (see Glossary) tÍÍÍÍo the Turks, but she obtained the right to represent Orthodox Christians within the Ottoman Empire and oversee the principalities' internal affairs Austria complained that the agreement rewarded Russia too favorably and annexed northern Bukovina (see Glossary), part of Moldavia. In 1787 the Russian army again marched into the principalities, but a stalemate gripped forces on all fronts and in 1792 the empress and sultan agreed to reaffirm existing treaties. In 1802 the Porte agreed to halt the rapid turnover of Phanariot princes henceforth, the princes would reign for seven-year terms and could not be dethroned without Russian approval.

In 1806 forces of Tsar Alexander I reoccupied the principalities, and the Romanian peasants were subjected to forced requisitions, heavy labor obligations, and real threats of exile to Siberia. As a result, the Romanians, who once had looked to the tsar for liberation, developed an abiding mistrust of the Russians that would deepen in the next century. In 1812 Russia and the Porte signed the Peace of Bucharest, which returned the principalities to the Ottomans and secured Russia's southern flank during Napoleon's invasion Russia, however, annexed Bessarabia and retained its right to interfere in the principalities' affairs. Despite Russia's concessions, the treaty so displeased the sultan that he had his negotiators beheaded.

In 1821 Greek nationalists headquartered in Odessa took control of Moldavia as the first step in a plan to extricate Greece from Ottoman domination. Phanariot rule in Walachia and Moldavia led the Greek nationalists to view the principalities as possible components of a renascent Byzantine Empire. The insurgency's leader, Alexander Ypsilanti, a general in the Russian army and son of a Phanariot prince, enjoyed the support of some Greek and Romanian boyars in the principalities after more than a century of extortion, however, most Romanians resented the Phanariots and craved the end of Greek control. Tudor Vladimirescu, a peasant-born Romanian whose wits and military skill had elevated him to boyar rank, assumed power in Walachia in an anti-Phanariot national uprising directed at establishing a Romanian government under Ottoman suzerainty. Russia denounced both Ypsilanti and Vladimirescu. The two rebel leaders argued in Bucharest afterwards, Greek officers shot the Romanian, mutilated his body, and dumped it into a pond, an act that also ended Romanian resistance, which evaporated after Vladimirescu's death. Then the Turks, with Russia's approval, attacked the principalities, scattered the Greek forces, and chased Ypsilanti into Transylvania. The Greek rebellion shocked the Porte, which no longer appointed Phanariot princes to the Walachian and Moldavian thrones and c 100hose in instead native Romanians.

Later, in 1826, an internal crisis forced the sultan to accede to Russia's demand for greater influence in the principalities. The Porte gave Russia the right of consultation regarding changes on the two thrones this concession assured Russia predominant influence at Bucharest and Iasi. Russia again invaded the principalities during the Russo-Turkish War of 1828, which resulted in the 1829 Treaty of Adrianople. The treaty provided for Russian occupation of the principalities until the Ottomans had fully paid an indemnity, the election of native Romanian princes for life, and an independent national administration and freedom of worship and commerce under Russian protection. Despite the fact that the Porte remained the principalities' suzerain and could exact a fixed tribute and direct certain aspects of foreign policy, the sultan could neither reject nor remove a prince without Russian consent.

During Russia's occupation, a capable administrator, Count Pavel Kiselev, improved health conditions, organized a well-disciplined police force, built up grain reserves, and oversaw the drafting and ratification of the principalities' first fundamental laws, the Règlement Organique. Russia used these charters to co-opt Romanian boyars by protecting their privileges, including their tax-exempt status and oligarchic control of the government. However flawed, the charters gave Romanians their first taste of government by law. The Règlement provided for elected assemblies of boyars to choose each prince, reformed the principalities' judicial systems, and established public education. At the same time, the documents' economic provisions enabled the boyars to stiffen peasant obligations and reduced the peasants' freedom of mobility.

After Russia's withdrawal in 1834, Walachia and Moldavia entered a period of self-government during which Russia guaranteed the privileges that the Ottomans had granted. During this period, the principalities' economic condition was bleak. For example a traveler to Walachia in 1835 reported seeing no manor houses, bridges, windmills, or inns and no furniture or utensils in peasant huts. In the mid-nineteenth century, Jews from Galicia began dominating trade, crafts, and money lending in the principalities. A native-Romanian bourgeoisie was virtually nonexistent. The boyars grew rich through the Black Sea wheat trade, using Jews as middlemen, but the peasants reaped few benefits. Beginning in the 1840s, construction of the first major roadways linked the principalities, and in 1846 Gheorghe Bibescu (1842-48), the Paris-educated prince of Walachia, agreed with Moldavia's Prince Mihai Sturdza (1834-49) to dismantle customs barriers between the principalities, marking the first concrete move toward unification.

The uprising of Transylvania's Romanian peasants during the 1848 European revolutions ignited Romanian national movements in Walachia and Moldavia. In Moldavia, Sturdza quashed the revolution overnight by arresting its leaders. In Walachia, however, a majority of the younger generation was averse to Russian and boyar dominance. Revolutionary platforms called for universal suffrage, equal rights, unification of the two principalities, and freedom of speech, association, and assembly. Although he sympathized with the revolutionary movement, Bibescu lacked the courage to lead it. After naming a revolutionary cabinet and signing a new constitution, he fled into Transylvania. The new government of Walachia quickly affirmed its loyalty to the Porte and appealed to Austria, France, and Britain for support, hoping to avert a Russian invasion. The government also formed a committee composed equally of boyars and peasants to discuss land reform. Shocked by the revolution's success in Europe and fearful that it might spread into Russia, the tsar invaded Moldavia and pressured the Porte to crush the rebels in Bucharest. Dissatisfied with Turkey's weak resolve, Russia invaded Walachia and restored the Règlement. After 1849 the two empires suppressed the boyar assemblies in W alac alachia and Moldavia and limited the tenure of their princes to seven years.

Data as of July 1989