Herod Antipas sibling Herod II
Early life
Antipas was a son of Herod the Great, who had become king of Judea, and Malthace, who was from Samaria. His date of birth is unknown but was before 20 BC. Antipas, his full brother Archelaus and his half-brother Philip, were educated in Rome.Antipas was not Herod's first choice of heir. That honour fell to Aristobulus and Alexander, Herod's sons by the Hasmonean princess Mariamne. It was only after they were executed (c. 7 BC), and Herod's oldest son Antipater was convicted of trying to poison his father (5 BC), that the now elderly Herod fell back on his youngest son Antipas, revising his will to make him heir. During his illness in 4 BC, Herod had yet another change of heart about the succession. According to the final version of his will, Antipas' elder brother Archelaus was now to become king of Judea, Idumea and Samaria, while Antipas would rule Galilee and Perea with the lesser title of tetrarch. Philip was to receive Iturea, Trachonitis, Batanea, Gaulanitis, Auranitis and Paneas also with the title of tetrarch.Because of Judea's status as a Roman client kingdom, Herod's plans for the succession had to be ratified by Augustus. The three heirs therefore travelled to Rome to make their claims, Antipas arguing he ought to inherit the whole kingdom and the others maintaining that Herod's final will ought to be honoured. Despite qualified support for Antipas from Herodian family members in Rome, who favoured direct Roman rule of Judea but considered Antipas preferable to his brother, Augustus largely confirmed the division of territory set out by Herod in his final will. Archelaus had, however, to be content with the title of ethnarch rather than king.John the Baptist and Jesus
Marriage to Herodias
Early in his reign, Antipas had married the daughter of King Aretas IV of Nabatea. However, on a visit to Rome he stayed with his half-brother Herod II and there he fell in love with his wife, Herodias, granddaughter of Herod the Great and Mariamne I, and the two agreed to marry after Herod Antipas had divorced his wife. Aretas' daughter learned of the plan and asked permission to travel to the frontier fortress of Machaerus, whence Nabatean forces escorted her to her father. With his daughter safe in his custody, Aretas now could declare war on Herod.  Josephus says that Aretas was joined in this war by 'fugitives from the tetrarchy of Phillip', whereas Moses of Chorene says that Aretas was joined by the Edessan army. It is said that the joint Petra-Edessan army prevailed over the forces of Herod Antipas.
It is generally agreed that the war, in which Herod was defeated, occurred in 36 AD, a year before the death of the emperor Tiberius. A point of contention today is how long before this date Herod's marriage to Herodias took place. Some surmise that the marriage of Antipas and Herodias took place shortly before the war in about 34 AD, after the death of Philip, but others have pointed to Josephus' Antiquities of the Jews (Book 18, chapter 5, paragraph 4) comment that Herodias "divorced herself from her husband while he was alive" to argue that it took place before Herod II's death, in about 27 AD, thus making it possible for Jesus to have been born in the reign of Herod the Great (as indicated by the Gospel of Matthew) and to have died in his early 30s (as indicated by the Gospel of Luke).
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