וְעַל־יָדָ֤ם הֶחֱזִיק֙ רְפָיָ֣ה בֶן־ח֔וּר שַׂ֕ר חֲצִ֖י פֶּ֥לֶךְ יְרוּשָׁלִָֽם׃ (ס)
And next unto them repaired Rephaiah the son of Hur, the ruler of half the district of Jerusalem.
Rashi on Nehemiah
the ruler of half the district of Jerusalem He was the prince over half the people in Jerusalem. פֶּלֶךְ is an expression of a duchy or a kingdom.