Tetrarch in the Bible

Now in the fifteenth year of the reign of Tiberius Caesar, Pontius Pilate being governor of Judaea, and Herod being tetrarch of Galilee, and his brother Philip tetrarch of the region of Ituraea and Trachonitis, and Lysanias tetrarch of Abilene,

and Lysanias tetrarch of Abilene, Annas and Caiaphas being high priests, the word of God came unto John the Son of Zacharias in the wilderness:

but Herod the tetrarch, being reproved by him for Herodias his brother's wife, and for all the evil things which Herod had done,

Now Herod the tetrarch heard of all the things that were done by Him; and was perplexed, because it was said by some that John was risen from the dead;