Turnu
Turnu stands on the northern side of the Danube in southern Wallachia, near routes linking the river plain with the interior. The river offered commerce, fishing, and transport, while also forming a strategic boundary. Grain-growing land and livestock supported nearby communities, and crossings connected them with settlements on the opposite bank. Control of a fortified point could influence movement along and across the water.
Turnu's fortress came under Ottoman control around 1417 and, with interruptions, remained an Ottoman-administered enclave on the Wallachian bank for centuries. The Treaty of Adrianople in 1829 confirmed its return to Wallachia after the Russo-Ottoman War. The settlement was subsequently moved to a nearby hill, where Turnu Măgurele developed. The river and fortified crossing thus linked local life with the shifting frontier between the principality and the empire.