Herod Antipas
While Josephus identifies the location of the imprisonment of John as Machaerus, southeast of the mouth of the Jordan river, the gospels mention no location for the place where John was imprisoned. According to other historical accounts Machaerus was rebuilt by Herod the Great around 30 BC and then passed to Herod Antipas. The 36 AD date of the conflict with Aretas IV (mentioned by Josephus) is consistent with the approximate date of the marriage of Herod Antipas and Herodias estimated by other historical methods.