user: Q:Information:  - In ancient geography, especially in Roman sources, Dacia was the land inhabited by the Dacians. The Greeks referred to them as the Getae, which were specifically a branch of the Thracians north of the Haemus Mons (the Balkan Mountains).  - The Crisis of the Third Century, also known as Military Anarchy or the Imperial Crisis (AD 235284), was a period in which the Roman Empire nearly collapsed under the combined pressures of invasion, civil war, plague, and economic depression. The Crisis began with the assassination of Emperor Severus Alexander by his own troops in 235, initiating a 50-year period in which there were at least 26 claimants to the title of Emperor, mostly prominent Roman army generals, who assumed imperial power over all or part of the Empire. The same number of men became accepted by the Roman Senate as emperor during this period and so became legitimate emperors.  - The Roman emperor was the ruler of the Roman Empire during the imperial period (starting in 27 BC). The emperors used a variety of different titles throughout history. Often when a given Roman is described as becoming "emperor" in English, it reflects his taking of the title "Augustus" or "Caesar". Another title often used was "imperator", originally a military honorific. Early Emperors also used the title "princeps" (first citizen). Emperors frequently amassed republican titles, notably "Princeps Senatus", "Consul" and "Pontifex Maximus".  - The Gallic Empire is the modern name for a breakaway part of the Roman Empire that functioned "de facto" as a separate state from 260 to 274. It originated during the Crisis of the Third Century.  - Aurelian (9 September 214 or 215  September or October 275) was Roman Emperor from 270 to 275. Born in humble circumstances, he rose through the military ranks to become emperor. During his reign, he defeated the Alamanni after a devastating war. He also defeated the Goths, Vandals, Juthungi, Sarmatians, and Carpi. Aurelian restored the Empire's eastern provinces after his conquest of the Palmyrene Empire in 273. The following year he conquered the Gallic Empire in the west, reuniting the Empire in its entirety. He was also responsible for the construction of the Aurelian Walls in Rome, and the abandonment of the province of Dacia.  - The Goths were an East Germanic people, two of whose branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Western Roman Empire and the emergence of Medieval Europe. The Goths dominated a vast area, which at its peak under the Germanic king Ermanaric and his sub-king Athanaric possibly extended all the way from the Danube to the Don, and from the Black Sea to the Baltic Sea.  - The Aurelian Walls are a line of city walls built between 271 AD and 275 AD in Rome, Italy, during the reign of the Roman Emperors Aurelian and Probus. They superseded the earlier Servian Wall built during the 4th century BC.  - The Juthungi (Greek: "Iouthungoi", Latin: "Iuthungi") were a Germanic tribe in the region north of the rivers Danube and Altmühl in the modern German state of Bavaria.  - Gallienus (IPA:gælins c. 218  268) was Roman Emperor with his father Valerian from 253 to 260 and alone from 260 to 268. He ruled during the Crisis of the Third Century that nearly caused the collapse of the empire. While he won a number of military victories, he was unable to prevent the secession of important provinces.  - The Vandals were an East Germanic tribe, or group of tribes, who were first heard of in southern Poland, but later moved around Europe establishing kingdoms in Spain and later North Africa in the 5th century.  - The Sarmatians (Latin: "Sarmatae" or "Sauromatae", Greek: ) were a large confederation of Iranian people during classical antiquity, flourishing from about the 5th century BC to the 4th century AD. They spoke Scythian, an Indo-European language from the Eastern Iranian family.  - The Roman Empire (Koine and Medieval Greek:   , tr. ) was the post-Roman Republic period of the ancient Roman civilization, characterized by government headed by emperors and large territorial holdings around the Mediterranean Sea in Europe, Africa and Asia. The city of Rome was the largest city in the world BC AD, with Constantinople (New Rome) becoming the largest around 500 AD, and the Empire's populace grew to an estimated 50 to 90 million inhabitants (roughly 20% of the world's population at the time). The 500-year-old republic which preceded it was severely destabilized in a series of civil wars and political conflict, during which Julius Caesar was appointed as perpetual dictator and then assassinated in 44 BC. Civil wars and executions continued, culminating in the victory of Octavian, Caesar's adopted son, over Mark Antony and Cleopatra at the Battle of Actium in 31 BC and the annexation of Egypt. Octavian's power was then unassailable and in 27 BC the Roman Senate formally granted him overarching power and the new title "Augustus", effectively marking the end of the Roman Republic.  - The Palmyrene Empire (270273), a splinter state centered at Palmyra, broke away from the Roman Empire during the crisis of the third century. It encompassed the Roman provinces of Syria Palaestina, Arabia Petraea, Egypt and large parts of Asia Minor.  - Iulius Placidianus was a Roman general of the 3rd century . He was a professional soldier who advanced his career under Gallienus and survived into the age of Claudius II and Aurelian . The account of him rehearsed here is largely derived from L.L. Howe 's history of the Praetorian Prefecture .  - Praetorian prefect was the title of a high office in the Roman Empire. Originating as the commander of the Praetorian Guard, the office gradually acquired extensive legal and administrative functions, with its holders becoming the Emperor's chief aides. Under Constantine I, the office was much reduced in power and transformed into a purely civilian administrative post, while under his successors, territorially-defined praetorian prefectures emerged as the highest-level administrative division of the Empire. The prefects again functioned as the chief ministers of the state, with many laws addressed to them by name. In this role, praetorian prefects continued to be appointed until the reign of Heraclius in the 7th century AD, when wide-ranging reforms reduced its power and converted it to a mere overseer of provincial administration. The last traces of the prefecture disappeared in the Byzantine Empire by the 840s.  - Rome is a city and special "comune" (named "Roma Capitale") in Italy. Rome is the capital of Italy and of the Lazio region. With 2,870,336 residents in , it is also the country's largest and most populated "comune" and fourth-most populous city in the European Union by population within city limits. The Metropolitan City of Rome has a population of 4.3 million residents. The city is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of Tiber river. The Vatican City is an independent country geographically located within the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states.     After reading the paragraphs above, we are interested in knowing the entity with which 'placidianus' exhibits the relationship of 'given name'. Find the answer from the choices below.  Choices: - ad  - africa  - an  - are  - asia  - augustus  - aurelian  - c .  - don  - german  - julius  - maximus  - roma  - roman  - rose
A:

assistant: julius