Puduhepa (c. 1290-1220 BCE) was the great Hittite queen — **wife of King Hattusili III** — who **co-ruled the Hittite Empire as Tawananna (Great Queen)**. **She corresponded directly with Pharaoh Ramesses II as an equal**, negotiating the marriage of her daughter to him. **Her seal appears alongside her husband's on the Treaty of Kadesh** — the world's earliest surviving international peace treaty (1259 BCE).
Her diplomatic letters are preserved in the Hittite archives at Hattusa.
Puduhepa reduces to six — the number of Hittite Great Queen.