As all things flow down the river, in May’Kar, so too does all power flow down from the Priest-King, who is held by the Mahsai to be the closest living person to divinity. There are few powers beyond the Priest-King’s control- they have command of the Dominion’s military, the authority to pass laws, and a great deal of influence over the courts and the other nobility of the land.
Each Priest-King can trace their lineage back to Kosami, the first to take on the title, and upon their death the title is transferred to their heir, usually their eldest child. Though the title ‘Priest-King’ has been held by both men and women, occasionally a new monarch will designate herself a Priest-Queen instead.
The Priest-King’s primary duty is to ensure that the Ukor River flows cleanly. And that it does flow cleanly, and has done so for hundreds of years, is the basis of the legitimacy that the crown wields and the divinity that the bearer claims.
While the crown holds a great deal of religious reverence, the first Priest-Kings of Saresh also worked to ensure political loyalty with the various Princes of the Ukor. This was done largely through intermarriage of the various royal families. In fact, many Ukorate nobles can also trace their lineage back to Kosami, which is often used to argue for additional standing or favor in the eyes of the Mahsai.
The Priest-King has near-unchecked executive power, issued in the form of edicts. There is no mechanism in the Dominion for an edict to be overruled except by subsequent edicts. The only check on the crown’s power is the consequences of that power being wielded poorly. The Priest-King is expected to use a great deal of discretion when deciding how and when to issue an edict, and it is not uncommon for some to go their entire lives without doing so. The issuance of an edict is considered to be a sacred act, and so an unjust one is sacrilege and risks damaging the legitimacy of the crown.
In the event that an heir is incapable of ruling, the title either passes to another eligible relative, or else another eligible relative serves as a regent temporarily, acting in the Priest-King’s place. Those that would report directly to the Priest-King instead report to this regent, and the only power they lack is the power of edict.
Officially, the Priest-King’s faith, and therefore the state faith, is the Mahsai. This is intended to prevent favoritism among the other faiths of the Dominion. In practice, it has entrenched the Mahsai itself as an unassailable institution of divine righteousness. Additionally, unofficially, some Priest-Kings have been known to hold and express beliefs in accordance with other faiths, which has at times undermined that intended neutrality and led to schisms, one of which ultimately ended in a successful assassination. Today, Priest-Kings are expected to reaffirm their faith to the Mahsai publicly, to avoid political turmoil.