Publius Egnatius Celer, was a Stoic

STOIC

STOIC was a variant of Forth.It started out at the MIT and Harvard Biomedical Engineering Centre in Boston, and was written in the mid 1970s by Jonathan Sachs...

 philosopher, who as a result of being an informer in the reign of Nero

Nero

Nero , was Roman Emperor from 54 to 68, and the last in the Julio-Claudian dynasty. Nero was adopted by his great-uncle Claudius to become his heir and successor, and succeeded to the throne in 54 following Claudius' death....

, was sentenced to death in the reign of Vespasian

Vespasian

Vespasian , was Roman Emperor from 69 AD to 79 AD. Vespasian was the founder of the Flavian dynasty, which ruled the Empire for a quarter century. Vespasian was descended from a family of equestrians, who rose into the senatorial rank under the Emperors of the Julio-Claudian dynasty...

.

When treason charges were brought against Barea Soranus

Barea Soranus

Quintus Marcius Barea Soranus was a Roman Senator in the 1st century. Soranus was from the gens Marcius. He was the son of Quintus Marcius Barea, who was Suffect Consul in 26 and was twice Proconsul of the Africa Province. Barea during his time in Africa was based in Leptis Magna...

 in 66 AD, because he had incurred the hatred of Nero, Egnatius Celer, who had formerly been a client and the teacher of Barea Soranus, stood as chief witness against him. Barea Soranus was condemned to death together with his daughter Servilia

Servilia (1st century)

Marcia Servilia Sorana or commonly known as Servilia was the daughter of Roman Senator Quintus Marcius Barea Soranus and her mother may have been from the gens Servilia. Servilia's paternal uncle was the Roman Senator Quintus Marcius Barea Sura, who was a friend to the future Roman Emperor Vespasian...

.

Egnatius received great rewards from Nero, but was afterwards accused by Musonius Rufus

Musonius Rufus

Gaius Musonius Rufus, was a Roman Stoic philosopher of the 1st century AD. He taught philosophy in Rome during the reign of Nero, as consequence of which he was sent into exile in 65 AD, only returning to Rome under Galba...

, another Stoic

STOIC

STOIC was a variant of Forth.It started out at the MIT and Harvard Biomedical Engineering Centre in Boston, and was written in the mid 1970s by Jonathan Sachs...

 philosopher, under Vespasian

Vespasian

Vespasian , was Roman Emperor from 69 AD to 79 AD. Vespasian was the founder of the Flavian dynasty, which ruled the Empire for a quarter century. Vespasian was descended from a family of equestrians, who rose into the senatorial rank under the Emperors of the Julio-Claudian dynasty...

, and condemned to death.