 The Manapa-Tarhunda letter is about a member of the Hittite ruling family, Piyama-Radu, who gained control of the kingdom of Wilusa, and whose only serious opposition came from the author of this letter, Manapa-Tarhunda.King Muwatalli of the Hittites was the opponent of this king of Troy, and the result of Muwatalli's campaign is not recorded in the surviving texts.The Ahhiyawa, generally identified with the Achaean Greeks, are mentioned in the Tawagalawa letter as the neighbors of the kingdom of Wilusa, and who provided a refuge for the troublesome renegade Piyama-Radu.