Simon Kézai was a Hungarian historian and chronicler active in the late 13th century. He is best known for his work, the "Gesta Hungarorum," which chronicles the history of the Hungarian people and their origins. Kézai's writings provide valuable insights into the early medieval period and the formation of the Hungarian state. Kézai's historical accounts are significant for their detailed descriptions of the Hungarian tribes and their leaders. His work reflects the cultural and political landscape of Hungary during his time, making it an important source for historians studying the region's past.