proclamator
/ˈprɒkləmeɪtə/noun
A person who proclaims or makes a public announcement; specifically an officer of the Court of Common Pleas.
Origin
Mid 17th century. From classical Latin prōclāmātor person who cries out or proclaims (in an isolated attestation in Cicero, though the reading has been disputed; subsequently in post-classical Latin: 636 in Isidore) from prōclāmāt-, past participial stem of prōclāmāre + -or. Compare French proclamateur.