Following the capture of Gallipoli by the Ottomans in 1354, Turkish expansion in the southern Balkans was rapid. The main target of the advance was Adrianople, which was the third most important Byzantine city (after Constantinople and Thessalonica). The date of Adrianople's fall to the Turks has been disputed among scholars due to the differing accounts in the source material. After the conquest, the city was renamed Edirne.The conquest of Adrianople was a turning point in the history of the Ottomans in Europe. Instead, the transformation of Adrianople into the new Ottoman capital of Edirne signalled to the local populace that the Ottomans intended to settle permanently in Europe.