Also among those who called the sultan basileus were those historians who were critical of the late Palaiologos emperors, such as Laonikos Chalkokondyles. George of Trebizond wrote eulogies for Mehmed upon the latter's death in 1481, wherein the sultan is called autokrator and basileus basileon (emperor of emperors).[10] In the mind of George of Trebizond, it was the possession of Constantinople that made Mehmed the legitimate Roman emperor: "no one can doubt that he is emperor of the Romans.