Simon of Kéza (Hungarian: Kézai Simon) was the most famous Hungarian chronicler of the 13th century. He was a priest in the royal court of king Ladislaus IV of Hungary. His most important work is Gesta Hunnorum et Hungarorum, written in Latin around 1282, in which he gives a vivid description of the history of the Huns and the Hungarians (whom he considered relatives), from the legendary beginnings until the contemporary period. As a personal secretary of the king, he worked in the royal archives and collected his material from older chronicles conserved there.