Cognomen in the context of "Tarquin the Proud"

Titus Aelius Hadrianus Antoninus Pius (/ˌæntəˈnaɪnəs ˈpaɪəs/; Latin: [antoːˈniːnus ˈpius]; 19 September 86 – 7 March 161) was Roman emperor from AD 138 to 161. He was the fourth of the Five Good Emperors from the Nerva–Antonine dynasty.

Born into a senatorial family, Antoninus held various offices during the reign of Emperor Hadrian. He married Hadrian's niece Faustina, and Hadrian adopted him as his son and successor shortly before his death. Antoninus acquired the cognomen Pius after his accession to the throne, either because he compelled the Senate to deify his adoptive father, or because he had saved senators sentenced to death by Hadrian in his later years. His reign is notable for the peaceful state of the Empire, with no major revolts or military incursions during this time. A successful military campaign in southern Scotland early in his reign resulted in the construction of the Antonine Wall.

The Roman emperor was the ruler and monarchical head of state of the Roman Empire, starting with the granting of the title augustus to Octavian in 27 BC. The title of imperator, originally a military honorific, was usually used alongside caesar, originally a cognomen. When a given Roman is described as becoming emperor in English, it generally reflects his accession as augustus, and later as basileus. Early emperors also used the title princeps ("first one") alongside other Republican titles, notably consul and pontifex maximus.

The legitimacy of an emperor's rule depended on his control of the Roman army and recognition by the Senate; an emperor would normally be proclaimed by his troops, or by the Senate, or both. The first emperors reigned alone; later emperors would sometimes rule with co-emperors to secure the succession or to divide the administration of the empire between them. The office of emperor was thought to be distinct from that of a rex ("king"). Augustus, the first emperor, resolutely refused recognition as a monarch. For the first three hundred years of Roman emperors, efforts were made to portray the emperors as leaders of the Republic, fearing any association with the kings who ruled Rome prior to the Republic.

Caesar (Latin: [ˈkae̯.sar] English pl. Caesars; Latin pl. Caesares; in Greek: Καῖσαρ Kaîsar) is a title of imperial character. It derives from the cognomen of Julius Caesar. The change from being a surname to a title used by the Roman emperors can be traced to AD 68, following the fall of the Julio-Claudian dynasty. When used on its own, the title denoted heirs apparent, who would later adopt the title Augustus on accession. The title remained an essential part of the style of the emperors, and became the word for "emperor" in some languages, such as German (Kaiser) and Slavic (Tsar).

Gnaeus Pompeius Magnus (Latin: [ˈŋnae̯.ʊs pɔmˈpɛjjʊs ˈmaŋnʊs]; 29 September 106 BC – 28 September 48 BC), known in English as Pompey (/ˈpɒmpi/ POM-pee) or Pompey the Great, was a Roman general and statesman who was prominent in the last decades of the Roman Republic. As a young man, he was a partisan and protégé of the dictator Sulla, after whose death he achieved much military and political success himself.

A member of the senatorial nobility, Pompey entered into a military career while still young. He rose to prominence serving Sulla as a commander in the civil war of 83–81 BC. Pompey's success as a general while young enabled him to advance directly to his first consulship without following the traditional cursus honorum (the required steps to advance in a political career). He was elected as consul on three occasions (70, 55, 52 BC). He celebrated three triumphs, served as a commander in the Sertorian War, the Third Servile War, the Third Mithridatic War, and in various other military campaigns. Pompey's early success led dictator Sulla to give him the cognomen Magnus – "the Great" – after his boyhood hero Alexander the Great. His adversaries gave him the nickname adulescentulus carnifex ("teenage butcher") for his ruthlessness.

Lucius Tarquinius Superbus (died 495 BC) was the legendary seventh and final king of Rome, reigning 25 years until the popular uprising that led to the establishment of the Roman Republic. He is commonly known as Tarquin the Proud, from his cognomen Superbus (Latin for "proud, arrogant, lofty").

Ancient accounts of the regal period mingle history and legend. Tarquin was said to have been either the son or grandson of Lucius Tarquinius Priscus, the fifth king of Rome, and to have gained the throne through the murders of both his wife and his elder brother, followed by the assassination of his predecessor, Servius Tullius. His reign has been described as a tyranny that justified the abolition of the monarchy.

Publius Terentius Varro Atacinus (Latin: [ˈpuːbliʊs tɛˈrɛntiʊs ˈwarːoː atakiːnʊs]; 82 – c. 35 BC) was a Roman poet, more polished in his style than the more famous and learned Varro Reatinus, his contemporary, and therefore more widely read by the Augustan writers. He was born in the province of Gallia Narbonensis, the southern part of Gaul with its capital at Narbonne, on the river Atax (now the Aude), for his cognomen Atacinus indicates his birthplace. Varro Atacinus was also in the neoteric circle, which included other notable poets such as Catullus and Marcus Furius Bibaculus.

Over the course of some fourteen centuries, the Romans and other peoples of Italy employed a system of nomenclature that differed from that used by other cultures of Europe and the Mediterranean Sea, consisting of a combination of personal and family names. Although conventionally referred to as the tria nomina, the combination of praenomen, nomen, and cognomen that have come to be regarded as the basic elements of the Roman name in fact represent a continuous process of development, from at least the seventh century BC to the end of the seventh century AD. The names that developed as part of this system became a defining characteristic of Roman civilization, and although the system itself vanished during the Early Middle Ages, the names themselves exerted a profound influence on the development of European naming practices, and many continue to survive in modern languages.