Mark 6:17
For Herod himself had sent [and] arrested John and bound him in prison because of Herodias, the wife of Philip his brother, because he had married her.
Matthew 11:2
Now [when] John heard in prison the deeds of Christ, he sent [word] by his disciples
Luke 3:19-20
But Herod the tetrarch, who had been reproved by him concerning Herodias, his brother's wife, and concerning all the evil deeds that Herod had done,
Matthew 4:12
Now [when he] heard that John {had been arrested}, he withdrew into Galilee.
Matthew 14:3-12
For Herod, [after] arresting John, bound him and put [him] in prison on account of Herodias, the wife of his brother Philip,
Luke 3:1
Now in the fifteenth year of the reign of Tiberius Caesar, [when] Pontius Pilate was governor of Judea, and Herod was tetrarch of Galilee, and his brother Philip was tetrarch of the region of Iturea and Trachonitis, and Lysanias was tetrarch of Abilene,