=Agamem´non=, king of Mycenæ and Argos, was brother to Menelaus, and son of Plisthenes, the son of Atreus. He married Clytemnestra, and Menelaus Helen, both daughters of Tyndarus, king of Sparta. When Helen eloped with Paris, Agamemnon was elected commander-in-chief of the Grecian forces invading Troy. =Agesila´us.= Of the family of the Proclidæ, son of Archidamus, king of Sparta, whom he succeeded. He made war against Artaxerxes, king of Persia, with success; but in the midst of his conquests he was called home to oppose the Athenians and Boetians. He passed over in thirty days that tract of country which had taken up a whole year of Xerxes' expedition. He defeated his enemies at Coronea, but sickness interfered with his conquests, and the Spartans were beaten in every engagement till he again appeared at their head. He died 362 years B.C. =Agrip´pa, M. Vipsanius.= A celebrated Roman who obtained a victory over S. Pompey, and favored the cause of Augustus at the battles of Actium and Philippi, where he behaved with great valor. In his expeditions in Gaul and Germany he obtained several victories, but refused the honor of a triumph, and turned his attention to the embellishment of Rome and the raising of magnificent buildings, among them the Pantheon. Augustus gave him his daughter Julia in marriage. He died universally lamented at Rome, aged fifty-one, B.C. 12. =Agrip´pa.= A son of Aristobulus, grandson of the great Herod. He was popular with the Jews, and it is said that while they were flattering him with the appellation of god he was struck with death, A.D. 43. His son of the same name was with Titus at the siege of Jerusalem, and died A.D. 94. It was before him that St. Paul pleaded. There were a number of others of the same name, but of less celebrity. =A´jax=, son of Telamon and Periboea, or Eriboea, was one of the bravest of the Greeks in the Trojan war. After the death of Achilles, Ajax and Ulysses both claimed the arms of the dead hero, which were given to Ulysses. Some say that he was killed in battle by Paris, but others record that he was murdered by Ulysses. =Alari´cus.= A famous king of the Goths, who plundered Rome in the reign of Honorius. He was greatly respected for his valor, and during his reign he kept the Roman empire in continual alarm. He died after a reign of twelve years, A.D. 410. He was buried in the bed of a river which had been turned from its course for the reception of his corpse, in order that it might be said that no one should tread on the earth where he reposed. =Al´bion=, son of Neptune and Amphitrite, came into Britain, where he established a kingdom, and introduced astrology and the art of building ships. Great Britain is called "Albion" after him.