At the time mentioned by Luke the territory of Abila, or Abilene, was no longer a tetrarchy.
They called it the Club of the tetrarchy, because they thought it grand to have a Greek name.
One place in Peræa and three in Philip's tetrarchy, with their events.
He also gave him the tetrarchy of Lysanias, 27 and changed his iron chain for a golden one of equal weight.
late Old English tetrarche "ruler of one of four divisions of a kingdom or province," from Late Latin tetrarcha, from Greek tetrarkhes "leader of four companies, tetrarch," from tetra- "four" (see tetra-) + arkhein "to rule" (see archon). Applied generally to subordinate rulers in the Roman Empire, especially in Syria.
strictly the ruler over the fourth part of a province; but the word denotes a ruler of a province generally (Matt. 14:1; Luke 3:1, 19; 9:7; Acts 13:1). Herod and Phasael, the sons of Antipater, were the first tetrarchs in Palestine. Herod the tetrarch had the title of king (Matt. 14:9).