Publius Cornelius Lentulus, nicknamed Spinther because of his likeness to a popular actor of that name, came from an ancient Roman patrician family of the Cornelia gens. Although treated with great favour by Julius Caesar, Spinther eventually came to support the aristocratic senatorial cause of Caesar's great rival Pompeius Magnus and to align himself with the Optimates party. This proved an unwise move that would eventually lead to his political destruction and perhaps to his death.
Publius Cornelius Lentulus Spinther first attained public office in 63 BC (the year of Cicero's consulship) when he was voted curule aedile. As curule aedile, Spinther assisted Cicero in the suppression of the Catiline conspiracy, and in that office he also distinguished himself by the splendour of the games he provided (though the royal purple stripe he used on his toga is said to have offended many Romans to whom purple was connected with royalty and therefore anathema to a good Roman.)
Spinther's career didn't suffer, however, and he was elected praetor in 60. Subsequently in 59 BC as pro-praetor he received the governorship of Hispania Citerior (Hither Spain). In seeking this province, Spinther received support for the first time from Julius Caesar.
As pro-praetor in Spain, Spinther struck coins which bore his name and nickname - proving the 'Spinther' nickname was now being officially used to distinguish him from those others in the Cornelia gens who bore the same name as he.
Spinther again received the support of Julius Caesar when he sought election to Rome's top job - the consulship in (57 BC). With Caesar's help, Spinther's campaign was successful, and he was elected one of Rome's two consuls for 57 BC. On the first day of his consulship (1 January 57 BC) he moved for the recall of Cicero from exile. Thereafter Cicero speaks of Spinther in friendly and grateful terms and indeed addressed a long letter to him when Spinther was later proconsular governor in Cilicia. This letter has survived and is published in most anthologies of Cicero's letters.