Sextus Afranius Burrus
Sextus Afranius Burrus was a prefect of the Praetorian Guard and was, together with Seneca the Younger, an advisor to the Roman emperor Nero, making him a very powerful man in the early years of Nero's reign. The cognomen "Burrus" is Latin for "red" or "reddish-brown", likely referring to his hair color.
Agrippina the Younger chose him as Prefect in 51 to secure her son Nero's place as emperor after the death of Claudius.
Emperor Nero
For the first eight years of Nero's rule, Burrus and Nero's former tutor Seneca helped maintain a stable government. Burrus acquiesced to Nero's murder of Agrippina the Younger but lost his influence over Nero anyway.
Death
In 62 AD, Burrus apparently suffered from a tumor in his throat or larynx, which was likely the cause of his death. However, contemporary rumors claimed that Nero had poisoned him because he was annoyed by Burrus's outspoken opposition to his criminal activities. Suetonius reports that Nero sent him a poisonous medicine to treat the tumor in his throat. Tacitus, on the other hand, leaves it open whether these rumors were actually true.