Herod Agrippa I in Smiths Bible Dictionary

V. HEROD AGRIPPA I. was the son of Aristobulus and Berenice, and grandson of Herod the Great. He was brought up at Rome, and was thrown into prison by Tiberius, where he remained till the accession of Caligula, who made him king, first of the tetrarchy of Philip and Lysanias; afterward the dominions of Antipas were added, and finally Judea and Samaria. Unlike his predessors, Agrippa was a strict observer of the law, and he sought with success the favor of the Jews. It is probable that it was with this view he put to death James the son of Zebedee, and further imprisoned Peter. Ac 12:1 ff. But his sudden death interrupted his ambitious projects. Ac 12:21,23