cleopatra was nominally the sole lawgiver in her kingdom. as proven by the discovery of a papyrus signed by cleopatra granting tax exemptions to antony's roman colleague quintus cascellius, she was directly involved in the administrative affairs of her kingdom. the musaeum and adjacent library of alexandria attracted scholars from all over the hellenistic world, who were also allowed to live in egypt with total tax exemptions. cleopatra was also the chief religious authority in the kingdom, carrying out rituals and rites in the ancient egyptian religion that her native egyptian subjects viewed as preventing the destruction of the world. given the largely-greek presence and multicultural nature of ptolemaic cities like alexandria, cleopatra was also obligated to oversee religious ceremonies honoring the various greek deities. ethnic greeks staffed the upper levels of government administrations, albeit within the framework of the scribal bureaucracy that had existed in egypt since the old kingdom. many administrators of cleopatra's royal court had served during her father's reign, although some of them were killed in the civil war between her and ptolemy xiii. the names of more than twenty regional governors serving under cleopatra are known from inscriptions and papyri records, indicating some were ethnic greeks and others were native egyptians.