The lowest order of citizens in Byzantur are slaves. Hilurin slaves in Byzantur are unheard of, and in most all cities are forbidden by law. There is no law, however, forbidding Aralyrin, Morturii, Chrj, or Khetian slaves. A very large step above slavery are the Commons: a class of citizen denoted by wealth status rather than birth. Commons are generally farmers, small-holders, or tradesmen who live in the countryside and have no official dealings with the Hyacinth Court or the powerful Temples of Deva. Most country-dwellers are Commons.

Primes are land-owning men and women of established means and/or influence. Their wealth may have been gotten by means of a trade or by inheritance, but always ostensibly by honest and honorable means, therefore no slaver or courtesan is ever considered a Prime. Unlike the noble class, any citizen of Byzantur may aspire to enter the prime class. Most Aralyrin are primes, and it is the largest class of citizenry in Byzantur and thought by some to be the most powerful.

The nobles of Byzantur are those of pure Hilurin blood related to or descended from Tejan, the first Flower Prince of Byzantur, who remained an ageless youth married to the goddess Deva for over a hundred years.Tejan was wedded to Deva at the age of fourteen, and lived a lifespan far beyond that of ordinary Hilurin. When he fell in love with Miria of Lysia, a blacksmith's daughter, he asked Deva's permission to be released and marry her. Deva consented, but only if Tejan gave up the immortality she had gifted him with. Tejan agreed, and he and Miria had six children. The noble Hilurin families of Byzantur all bear the common surname of Tejan, whether descended paternally or matrilinially, and it is quite a job to keep them all sorted out. Noble Hilurin houses sometimes distinguish themselves by the names of their estates, such as Tejan of House Blue Sun, or Tejan of Sapphire House, but this is considered an unimportant distinction.

All Hilurin nobles are called my lord, or my lady, (never prince or princess) and rank is denoted by order of relation to Tejan descendants. There are five banners in Hilurin nobility, each representing a degree of separation from Tejan;'s bloodline, beginning with First Banner houses all the way down to Fifth Banner. who are distant cousins only.

The conduct of Hilurin nobles and common citizens is outlined in The Biroz.