His success encouraged the widow (who is called Dakhamunzu in the annals) of the Egyptian king "Nibhururiya" (usually identified with Tutankhamun) to write to him, asking him to send one of his sons to be her husband and rule Egypt, since she had no heir and was on the verge of being forced to marry "a servant", usually thought to be the Egyptian general Horemheb or her late husband's vizier Ay. Suppiluliuma dispatched an ambassador to Egypt to investigate; he reported that the situation was accurately described, and the king decided to take advantage of this windfall; unfortunately, Prince Zannanza died on the way, and the marriage alliance never was consummated. Angry letters were exchanged between Suppiluliuma and the Pharaoh Ay, who had assumed the Egyptian throne, over the circumstances of Zannanza's death.