Dervish Ahmed, better known by his pen name Âşıki or family name Aşıkpaşazade, was an Ottoman historian, a prominent representative of the early Ottoman historiography. He was a descendant of mystic poet dervish Aşık Pasha (1272–1333). He was born in the region of Amasya and studied in various Anatolian towns before going to Hajj and stayed some time in Egypt. He later took part in various Ottoman campaigns, such as the Battle of Kosovo (1448), Fall of Constantinople and witnessed the circumcision festivities of Mustafa and Bayezid II the sons of Mehmed the Conqueror. Later in his life he started to write his famous history work Tevārīḫ-i Āl-i ʿOsmān.