Mutahharten

Mutahharten (), also known as Taharten (; died late 1403), was Emir of Erzincan from 1379 until his death. Erzincan was previously ruled by emirs who exercised autonomy as vassals of the Eretnids. Mutahharten claimed sovereignty from the Eretnids when he assumed power, which prompted the Eretnid Sultan Ala al-Din Ali () to go on an expedition to reinstate his authority over Erzincan. While Mutahharten ultimately repelled Ali, the latter was replaced by his vizier Kadi Burhan al-Din (), who was determined to restore the sultanate's former boundaries. Burhan al-Din and Mutahharten were involved in a long-lasting conflict. Upon the advent of Timur, Mutahharten contently swore allegiance and halted his campaigns in Anatolia, but Timur's departure reignited the conflict between Mutahharten and Burhan al-Din. Often overpowered by his enemies, Mutahharten forged alliances with various groups but did not hesitate to turn against his former allies, such as the Aq Qoyunlu, when he saw fit. On the other hand, Mutahharten's relations with the Empire of Trebizond and his Christian subjects were consistent, as he favored them for their economic contribution to his realm through trade.

After Kadi Burhan al-Din's death, Mutahharten faced a new threat from the Ottoman state, when Bayezid I demanded he surrender Erzincan. Mutahharten instead relied on Timur's strength and found himself in the midst of the Ottoman–Timurid conflict. Bayezid took Erzincan in 1401, imprisoning Mutahharten for a short period. Mutahharten continued supporting Timur until he died in late 1403. His death signaled the nearing end for the Emirate of Erzincan, which would frequently change hands between the Aq Qoyunlu and their rival Qara Qoyunlu.