Diauehi (Georgian დიაოხი, Urartian Diauehi, Greek Taochoi, Armenian Tayk, possibly Assyrian Daiaeni,) was a tribal union located in northeastern Anatolia, that was recorded in Assyrian and Urartian sources during the Iron Age. It is usually (though not always) identified with the earlier Daiaeni (Dayaeni), attested in the Yonjalu inscription of the Assyrian king Tiglath-Pileser I's third year (1118 BC) and in later records by Shalmaneser III (845 BC). While it is unknown what language(s) they spoke, they may have been speakers of a Kartvelian, Armenian, or Hurrian language. Location Although the exact geographic extent of Diauehi is still unclear, many scholars place it in the Pasinler Plain in today's northeastern Turkey, while others locate it in the Armenian–Georgian marchlands as it follows the Kura River. Most probably, the core of the Diauehi lands may have extended from the headwaters of the Euphrates into the river valleys of Çoruh to Oltu. The Urartian sources speak of Diauehi's three key cities—Zua, Utu and Sasilu; Zua is frequently identified with Zivin Kale and Utu is probably modern Oltu, while Sasilu is sometimes linked to the early medieval Georgian toponym Sasire, near Tortomi (present-day Tortum, Turkey). The Diaeuhian city Šešetina may have corresponded to Şavşat, Turkey (Shavsheti in Georgian). The region of Diauehi seems to have roughly corresponded to, or bordered, the previous Hayasa-Azzi territory. History In the early 8th century, Diauehi became the target of the newly emerged regional power of Urartu. Menua (810–785 BC) conquered part of Diaeuhi, annexing its most important cities: Zua, Utu, and Shashilu, and forcing the king of Diauehi, Utupursi(ni), to pay a tribute of gold and silver. Menua's son, Argishti I (785–763 BC), campaigned against the Diauehi kingdom in 783. Argishti I defeated King Utupursi, annexing his possessions․ In exchange for his life, Utupursi was forced to pay a tribute including a variety of metals and livestock. Toward the end of his reign, Argishti I led yet another campaign against Utuspursi, who led a rebellion against the Urartians. Possible ethno-linguistic identification Diauehi is considered by some as a locus of Proto-Kartvelian; it has been described as an "important tribal formation of possible proto-Georgians" by Ronald Grigor Suny (1994). According to Robert H. Hewsen, they may have been speakers of a language unrelated to any other in the Caucasus region. However, they are mentioned by Diodorus Siculus as Xaoi, which Hewsen etymologizes as a Greek form of the