Ibn Killis served as wazir in all for fifteen years (d. 368), and it was largely due to him that the country enjoyed internal peace and that the public revenue was largely increased. For the next two years the wazir was the Christian ʿIsa b. Nestorius, who was supported by harim influence. In fact the only efficient administrators were to be found amongst the non-Muslims and renegades: the Turks and Berbers were all right as fighting men, but could never learn to act efficiently as civil servants. But these appointments were not popular, and evidences of resentment appear from time to time. When, towards the end of the reign, preparations were being made against the Greeks, and a fleet of 600 ships lay ready at Maqs to support the army in an expedition to Syria, eleven of these ships were set on fire, and popular feeling ascribed this disaster to the Greek inhabitants living in the neighbourhood, with the result that there was a riot in which many Greeks were murdered and their houses pillaged. It is not fair, however, to represent this as an anti-Christian movement, although no doubt most of those who suffered were Christians. The riot was soon put down, for al-ʿAziz brought out his bodyguard of Turks and Berbers, and within six months the energy of Ibn Nestorius produced six new vessels of the newest type. Al-ʿAziz shared the besetting weakness of all the Fatimids in his uncontrolled love of ostentatious display. In his case this not only took the form of magnificent dresses and lavish generosity, but he showed a marked passion for rarities of every sort. At his table there were the most curious and foreign dainties, strange animals were imported to grace his public processions, and robes of costly and hitherto unknown materials were procured from the most distant lands. At the same time al-ʿAziz was an expert in precious stones and articles of _vertu_, and formed a collection of such things in his palace. On the other hand he was a strict reformer in matters of finance, putting down the taking of bribes and presents with severity, and introducing the custom of paying every official and household servant a fixed salary.