On 26 July 1402, in the Battle of Ankara, Bayezid I was defeated and captured by Timur. This momentous event overturned the balance of power in the region, as the Ottoman domains in Anatolia were divided by Timur, who restored many of the Anatolian beyliks previously absorbed by Bayezid. Timur did not interfere with the Balkans, however, where the Ottoman conquest was also far advanced. Ali helped save Bayezid's oldest son, Süleyman Çelebi, from capture, and escorted him to the Ottoman capital Bursa, and then to the Ottomans' European capital, Adrianople.