Herod Agrippa II (a.k.a.: Julius Marcus Agrippa or Agrippa II; born in A.D. 27 or 28 and he lived until around A.D. 93):
Herod Agrippa II was a Herodian Jew who was educated at the court of the Roman Emperor Claudius. At the time of his father’s death (in A.D. 44) he was only seventeen years old.
In A.D. 48 Agrippa II became the ruler of the same Syrian kingdom of Chalcis, with the right of superintending the Temple in Jerusalem. In A.D. 53 the Emperor Claudius made Herod Agrippa II the king of , Batanea, Trachonitis and Gaulonitis (Golan), and the kingdom of Lysanias in Abila (the regions around the Golan heights in modern day southern Syria and northern Jordan, and Lebanon), and in A.D. 57 the region around Galilee was added to his territory, making him the de facto “King of the Jews”. Flavius Josephus tells us that Agrippa II lived in a long term incestuous relationship with his sister Bernice, the Queen of the Jews. He also expended large sums in beautifying Jerusalem and other cities, especially Berytus (ancient Beirut), a Hellenized city in Phoenicia, which he was particularly fond of.
It was before Agrippa II and his sister (common law wife) Berenice that, the Apostle Paul (in the custody of Governor Festus, see A.D. 59) pleaded his case at Caesarea Maritima, in A.D. 59 (Acts Chapters 25-26).
So this King Agrippa is the one who was King of the Jews during the during the period leading up to and during the First Jewish-Roman War of 66–73, which included the famous siege and fall of Jerusalem under Titus, and the complete destruction of the Temple of Jerusalem (in A.D. 70). He continued to be the King of the Jews for another 20 plus years after the fall of Jerusalem. During all of that time Agrippa II sided with the Romans including Vespasian and Titus and supported the Roman side with his Jewish military forces.
During the First Jewish-Roman War of 66–73, Agrippa sent 2,000 men, archers and cavalry, to support Vespasian, showing that, although a Jew in religion, he was entirely devoted to the Roman Empire. He accompanied Titus on some campaigns, and Agrippa II was wounded at the siege of Gamla. After the capture of Jerusalem, he went with his sister Berenice to Rome, where he was invested with the dignity of Praetor and rewarded with additional territory.
Agrippa died, childless around A.D. 93. He was the last prince of the house of Herod.