Information: - Marcus Aurelius Nigrinianus , known in English as Nigrinian ( d. 284/285 ) , was probably the son of Roman Emperor Carinus and an heir to the throne , and grandson of the Roman Emperor Carus who founded his royal family.Not much is known about him . It is assumed that Carinus ' wife Magnia Urbica was his mother , but it has been proposed that he was actually the son of Aurelia Paulina , Carinus ' sister and thus the Emperor 's nephew . Nigrinian died in infancy in late 284 or early 285 . After his death he was given divine status . - Carinus (died 285) was Roman Emperor from 283 to 285. The elder son of emperor Carus, he was first appointed "Caesar" and in the beginning of 283 co-emperor of the western portion of the empire by his father. Official accounts of his character and career have been filtered through the propaganda of his successful opponent, Diocletian. - Diocletian, born Diocles (244312), was a Roman emperor from 284 to 305. Born to a family of low status in the Roman province of Dalmatia, Diocletian rose through the ranks of the military to become cavalry commander to the Emperor Carus. After the deaths of Carus and his son Numerian on campaign in Persia, Diocletian was proclaimed emperor. The title was also claimed by Carus' other surviving son, Carinus, but Diocletian defeated him in the Battle of the Margus. Diocletian's reign stabilized the empire and marks the end of the Crisis of the Third Century. He appointed fellow officer Maximian as Augustus, co-emperor, in 286. - Carus (c. 222 July or August 283) was Roman Emperor from 282 to 283, and was 60 at ascension. During his short reign, Carus fought the Germanic tribes and Sarmatians along the Danube frontier with success. He brought stability in the empire and died in 283 aged 61. - Numerian (died 20 November 284) was Roman Emperor from 283 to 284 with his older brother Carinus. They were sons of Carus, a general raised to the office of praetorian prefect under Emperor Probus in 282. - Magnia Urbica was wife of the emperor Carus, until recently mistaken to be the wife of his own son Carinus. While both Carinus and Numerian were killed in 284 CE it is unclear what her own fate may have been or even if she predeceased them. She was granted the honorifics "Augusta", and "Mater castrorum, senatus ac patriae", "Mother of the (Military) camp, Senate and Fatherland". - 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". Given the information above, choose from the list below the object entity that exhibits the relation 'date of birth' with the subject 'nigrinian'. Choices: - 20 - 222 - 27 - 283 - 284 - 285 - 305 - 312
A:
283