eparchs

Most prelates throughout the Empire would be making the same calculations as the local eparchs.

Bridge of the Separator Turtledove, Harry 2005

(Ch. vii.) "And Joramus directed all the eparchs in the cities and islands to make out and send to Tyre descriptions of the inhabitants, their ships, their arms, their horses, their scythe-bearing chariots, and their property of all kinds; and he ordered them to send to distant countries persons competent to draw up narratives of the same kind, and to record them all in a book.

Ceylon; an Account of the Island Physical, Historical, and Topographical with Notices of Its Natural History, Antiquities and Productions, Volume 1 (of 2) James Emerson Tennent 1836