Cir´ce. A daughter of Sol and Perseis, celebrated for her knowledge of magic and venomous herbs. She was carried by her father to an island called Æaea. Ulysses, on his return from the Trojan war, visited her coasts, and his companions were changed, by her potions, into swine. Ulysses, who was fortified against enchantments by an herb which he had received from Mercury, demanded of Circe the restoration of his companions to their former shape; she complied with his wishes, and eventually permitted him to depart from her island.

Claudia´nus. A celebrated poet, in the age of Honorius, who is considered by some writers to equal Virgil in the majestic character of his style.

Clau´dius, T. Drusus Nero, son of Drusus, became emperor of Rome after the death of Caligula. He went to Britain, and obtained a triumph for victories achieved by his generals. He suffered himself to be governed by favorites, whose avarice plundered the State and distracted the provinces. He was poisoned by Agrippina, who wished to raise her son Nero to the throne.

Cleopa´tra, queen of Egypt, daughter of Ptolemy Auletes, was celebrated for her beauty. Antony became enamored of her and married her, ignoring his connection with Octavia, the sister of Augustus. He gave her the greatest part of the eastern provinces of the Roman empire. This caused a rupture between Augustus and Antony, and these two famous men met at Actium, when Cleopatra, by flying with sixty ships, ruined the battle for Antony, and he was defeated. Cleopatra destroyed herself by applying an asp to her breast.

Cli´o. The first of the Muses, daughter of Jupiter and Mnemosyne. She presided over history.

Cloaci´na. A goddess at Rome who presided over the Cloacæ, which were large receptacles for the filth of the whole city.

Clo´tho, the youngest of the three Parcæ, who were daughters of Jupiter and Themis, was supposed to preside over the moment of birth. She held the distaff in her hand and spun the thread of life.

Clytemnes´tra. A daughter of Tyndarus, king of Sparta, and Leda, married Agamemnon, king of Argos, in whose absence in the Trojan war she misconducted herself with his cousin Ægysthus. On the return of Agamemnon Clytemnestra murdered him, as well as Cassandra, whom he had brought with him. After this Clytemnestra ascended the throne of Argos. In the meantime her son Orestes, after an absence of seven years, returned, resolved to avenge the death of his father Agamemnon. On an occasion when Ægysthus and Clytemnestra repaired to the Temple of Apollo, Orestes, with his friend Pylades, killed them.

Clyt´ia or Clyt´ie. A daughter of Oceanus and Tethys, beloved by Apollo. She was changed into a sun-flower.

Co´cles, P. Horatius. A celebrated Roman who alone opposed the whole army of Porsenna at the head of a bridge whilst his companions were cutting off the communication with the other shore. When the bridge was destroyed, Cocles, though wounded by the darts of the enemy, leapt into the Tiber and swam across it, armed as he was. For his heroism a brazen statue was raised to him in the Temple of Vulcan.