Mesazon (Theodorous and the Parathalassias)
The Mesazon (Greek: Mesazōn, literally "intermediary") serves as the head of government and chief executive of Theodorous and the Parathalassias. Some of the states preceding the modern-day Principality, such as the pre-war Principality as well as Theodoro-Samos, were likewise led by a Mesazon.
In the modern-day Principality, the Mesazon is the chief executive in a parliamentary constitutional monarchy, in which the head of state, the Prince, serves in only a ceremonial role. The Mesazon, like many prime ministers in other constitutional monarchies, is officially appointed by the Prince; however, the Prince is, according to the Theodoran Basilika (constitution), required to appoint "whichever Senator commands the support of his colleagues, is of good moral and legal standing, and has the will and ability to carry out the duties expected of the Mesazon" — in practise, the leader or other designee of the largest party or coalition in the Senate. The Mesazon must win an investiture vote by a simple majority before taking office; he can be removed by a motion of no confidence supported by an absolute majority of 16 senators.