From Silver Sun Republic Codex

Requesta is the deity of the Republic often referred to as the Radiant Lady. Depending upon the era or state of the Republic, Requesta can take on the form of a goddess/omnipotent being, a demigod, a spirit, or even in the case of Echoes to Eternity, a whole planet.

Generally Requesta forms the central deity of the religion of the Republic and interacts in some form with the prophets or saints Spero and Istria.