Tudḫaliya IV

Tudhaliya IV was a king of the Hittite Empire (New kingdom), and the younger son of Hattusili III. He reigned c. 1245–1215 BC (middle chronology) or c. 1237–1209 BC (short chronology). His mother was the great queen, Puduhepa.

Early life
Tudhaliya was likely born in his father's court in Hattusa, after his brother and crown prince Nerikkaili, but still while their father was governing on his brother Muwatalli II's behalf. He was a good friend of Muwatalli's son, Kurunta, and Hattusili ordered that they stay on good terms.

After Hattusili as King wrote up a treaty with "Ulmi-Tessup" which confirmed Kurunta's rule over Tarhuntassa, Hattusili elevated Tudhaliya over his older brother to be his crown prince. Tudhaliya as king drew up a bronze tablet treaty confirming the links between him and Kurunta.

Tudhaliya had a sister, Maathorneferure, who served as Great Royal Wife to Pharaoh Ramesses II of Egypt.

Reign
The Hittite Empire covered large parts of Anatolia and Syria. Climate change set with drier conditions that caused a severe drought. Tudhaliya IV responded by building at least 13 dams to secure water supplies, one of which still survives to this day at Alacahöyük.

In the East, Tudhaliya IV faced the rival Assyrians. He suffered a severe defeat at the hands of Tukulti-Ninurta I of Assyria in the Battle of Nihriya, c. 1237 BC.

Tudḫaliya, king of the Hittites, was reeling from defeat by the Assyrians at the Battle of Nihriya, refers to the Babylonian king as his equal, in his treaty with his vassal, Šaušgamuwa of Amurru, hinting at the possible existence of an alliance or at least a tacit understanding between them. It reads:

"The kings who are equal to me (are) the king of Egypt, the king of Karanduniya (Babylon), the king of Assyria . And if the king of Karanduniya is My Majesty's friend, he shall also be your friend; but if he is My Majesty's enemy, he shall also be your enemy. Since the king of Assyria is My Majesty's enemy he shall also be your enemy. Your merchant shall not enter into Assyria and you shall not allow his merchant into your land. He shall not pass through your land. But if he enters into your land, you should seize him and send him off to My Majesty."

In the Southwest, the empire had been divided with parts of the territory controlled by Kurunta of Tarhuntassa.

A clay tablet (CTH 121), dating to the reign of Suppiluliuma II, tells that a statue was set ut by Tudhaliya IV to commemorate his conquest of the Land of Alasiya (Cyprus?).

He had two sons, Arnuwanda III and Suppiluliuma II, who were the final two kings of the Hittite Empire.