The Siniar are found mostly in Mirning Province, and to some extent in neighboring Tirian; they are sometimes called the Siniar-Adantri, to indicate that, although they are not "pure" Adantri, they are "nearly so." A glance at the purest Siniar lineages will make it obvious that they are not Adantri at all, but a completely different race of humans, at least physically. They tend to be somewhat taller than the Northern Adantri and much lighter in their coloring--the pure Siniar are blond, very light blond, and even the Siniar-Adantri produce many people with blond or light brown hair. The noble houses of the Siniar claim connection with the Third Dynasty of Lirith Kai, the House of Siniaris, which is credited with giving clear form to the Adantri code of honor and emphasis on martial training, a heritage of which the Siniari of today are justly proud.

The culture of the Siniar of today is pure Adantri, if a somewhat antique version. They are generally more formal in their manners, but at the same time less polite; Lord Anniar has been heard to remark that the lords of Siniar are the most courteously blunt and tactless people he has ever met. It is not that they want to hurt people's feelings, so much as that they are totally unwilling to gloss over anyone's faults--including their own. The Siniar of today have produced many great warriors and some generals of note, but few administrators that are more than basically competent and no statesmen. (Anybody, they say, can be a paper-pusher, but a swordsman is a work of art.) Government officials in Mirning at any level over the strictly local are routinely from elsewhere in the Empire; this causes no resentment so long as they're honest, because no self-respecting Siniar WANTS to be a bureaucrat.