The Deeds of Suppiluliuma say a widowed Egyptian queen asked the Hittite king for a son to marry, and the prince Zannanza died on the way

The Deeds of Suppiluliuma, written by his son Mursili II, say that an Egyptian queen, named Dakhamunzu in the Hittite text, wrote after her husband died: "My husband died. A son I have not." She asked for one of the Hittite king's sons as her husband. Suppiluliuma replied "Such a thing has never happened to me in my whole life!" and sent an envoy to check her story. She wrote again: "Had I a son, would I have written about my own and my country's shame to a foreign land?" He sent his son Zannanza. The prince died before he crossed into Egypt. The Hittite text says "The people of Egypt killed Zannanza." The new king of Egypt, possibly Ay, wrote to the Hittite king: "Your son has died, but I have not caused him any ill." Suppiluliuma attacked Egyptian territory in Syria. Prisoners brought back to Hattusa carried a plague that killed him and his heir Arnuwanda II. The queen is most often identified as Ankhesenamun, widow of Tutankhamun. Some Egyptologists name Nefertiti, and Meritaten has also been proposed^†. A glass ring of unknown origin pairs her name with Ay's, which suggests she married him^†. She then disappears from the record, and no burial has been securely identified as hers.