Treaty of Kadesh

After this date, the power of both the Hittites and Egyptians began to decline yet again because of the power of the Assyrians. The Assyrian king Shalmaneser I had seized the opportunity to vanquish Hurria and Mitanni, occupy their lands, and expand up to the head of the Euphrates in Anatolia and into Babylonia, Ancient Iran, Aram (Syria), Canaan (Palestine), and Phoenicia, while Muwatalli was preoccupied with the Egyptians. The Hittites had vainly tried to preserve the Mitanni kingdom with military support. Assyria now posed just as great a threat to Hittite trade routes as Egypt ever had. Muwatalli's son, Urhi-Teshub, took the throne and ruled as king for seven years as Mursili III before being ousted by his uncle, Hattusili III after a brief civil war. In response to increasing Assyrian annexation of Hittite territory, he concluded a peace and alliance with Ramesses II (also fearful of Assyria), presenting his daughter's hand in marriage to the Pharaoh. The "Treaty of Kadesh", one of the oldest completely surviving treaties in history, fixed their mutual boundaries in southern Canaan, and was signed in the 21st year of Rameses (c. 1258 BC). The terms of this treaty included the marriage of one of the Hittite princesses to Ramesses.