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Marcus Junius Brutus (early June 85 BC – 23 October 42 BC), often referred to as Brutus, was a politician of the late Roman Republic. After being adopted by his uncle he used the name Quintus Servilius Caepio Brutus, but eventually returned to using his original name.
Marcus Junius Brutus the Younger was the son of Marcus Junius Brutus the Elder and Servilia Caepionis. His father was killed by Pompey the Great in dubious circumstances after he had taken part in the rebellion of Lepidus; his mother was the half-sister of Cato the Younger, and later Julius Caesar's mistress. Some sources refer to the possibility of Caesar being his real father, despite Caesar's being only 15 years old when Brutus was born.
Brutus' uncle, Quintus Servilius Caepio, adopted him in about 59 BC, and Brutus was known officially for a time as Quintus Servilius Caepio Brutus before he reverted to using his birth-name. Following Caesar's assassination in 44 BC, Brutus revived his adoptive name in order to illustrate his links to another famous tyrannicide, Gaius Servilius Ahala, from whom he was descended.
Brutus held his uncle in high regard and his political career started when he became an assistant to Cato, during his governorship of Cyprus. During this time, he enriched himself by lending money at high rates of interest. Brutus was also active in the province of Cilicia, in the year before Cicero was proconsul there; Cicero documents how Brutus profited from moneylending to the provincials in his Letters. He returned to Rome a rich man, where he married Claudia Pulchra. From his first appearance in the Senate, Brutus aligned with the Optimates (the conservative faction) against the First Triumvirate of Marcus Licinius Crassus, Gnaeus Pompeius Magnus and Gaius Julius Caesar.
When civil war broke out in 49 BC between Pompey and Caesar, Brutus followed his old enemy and present leader of the Optimates, Pompey. When the Battle of Pharsalus began, Caesar ordered his officers to take Brutus prisoner if he gave himself up voluntarily, but to leave him alone and do him no harm if he persisted in fighting against capture.
After the disaster of the Battle of Pharsalus, Brutus wrote to Caesar with apologies and Caesar immediately forgave him. Caesar then accepted him into his inner circle and made him governor of Gaul when he left for Africa in pursuit of Cato and Metellus Scipio. In 45 BC, Caesar nominated Brutus to serve as urban praetor for the following year.
Also, in June 45 BC, Brutus divorced his wife and married his first cousin, Porcia Catonis, Cato's daughter. According to Cicero the marriage caused a semi-scandal as Brutus failed to state a valid reason for his divorce from Claudia other than he wished to marry Porcia. The marriage also caused a rift between Brutus and his mother, who resented the affection Brutus had for Porcia.
Around this time, many senators began to fear Caesar's growing power following his appointment as dictator in perpetuity. Brutus was persuaded into joining the conspiracy against Caesar by the other senators. Eventually, Brutus decided to move against Caesar after Caesar's king-like behavior prompted him to take action. His wife was the only woman privy to the plot.
The conspirators planned to carry out their plot on the Ides of March (March 15) that same year. On that day, Caesar was delayed going to the Senate because his wife, Calpurnia Pisonis, tried to convince him not to go. The conspirators feared the plot had been found out. Brutus persisted, however, waiting for Caesar at the Senate, and allegedly still chose to remain even when a messenger brought him news that would otherwise have caused him to leave.
When Caesar finally did come to the Senate, they attacked him. Publius Servilius Casca Longus was allegedly the first to attack Caesar with a blow to the shoulder, which Caesar blocked. However, upon seeing Brutus was with the conspirators, he covered his face with his toga and resigned himself to his fate. The conspirators attacked in such numbers that they even wounded one another. Brutus is said to have been wounded in the hand and in the legs.
After the assassination, the Senate passed an amnesty on the assassins. This amnesty was proposed by Caesar's friend and co-consul Marcus Antonius. Nonetheless, uproar among the population caused Brutus and the conspirators to leave Rome. Brutus settled in Crete from 44 to 42 BC.
Marcus Junius Brutus.
In 43 BC, after Octavian received his consulship from the Roman Senate, one of his first actions was to have the people who had assassinated Julius Caesar declared murderers and enemies of the state.Marcus Tullius Cicero, angry at Octavian, wrote a letter to Brutus explaining that the forces of Octavian and Marcus Antonius were divided. Antonius had laid siege to the province of Gaul, where he wanted a governorship. In response to this siege, Octavian rallied his troops and fought a series of battles in which Antonius was defeated.
Battle of Philippi (42 BC)
Upon hearing that neither Antonius nor Octavian had an army big enough to defend Rome, Brutus rallied his troops, who totalled about 17 legions. When Octavian heard that Brutus was on his way to Rome, he made peace with Antonius. Their armies, which together totalled about 19 legions, marched to meet Brutus and Gaius Cassius Longinus. The two sides met in two engagements known as the Battle of Philippi. The first was fought on October 3, 42 BC, in which Brutus defeated Octavian's forces, although Cassius was defeated by Antonius' forces. The second engagement was fought on October 23, 42 BC and ended in Brutus' defeat.
EID MAR ("Ides of March") denarius, issued by Marcus Junius Brutus in 43/42 BC. The obverse of the coin features a portrait of Marcus Brutus. The inscription reads BRVT IMP L PLAET CEST, which means Brutus, Imperator, Lucius Plaetorius Cestianus. Lucius Plaetorius Cestianus was the moneyer who actually managed the mint workers who produced the coin. The two daggers on the reverse differ to show more than one person was involved in the slaying. The cap is a pileus (liberty cap) that in Roman times was given to slaves on the day of their emancipation – freedom from slavery. In the context of the assassination, Brutus is making it clear the killers were defending the Republic and its people from Caesar’s grasp at kingship.
After the defeat, he fled into the nearby hills with only about four legions. Knowing his army had been defeated and that he would be captured, Brutus committed suicide. Among his last words were, according to Plutarch, "By all means must we fly; not with our feet, however, but with our hands." Brutus also uttered the well-known verse calling down a curse upon Antonius (Plutarch repeats this from the memoirs of Publius Volumnius): Forget not, Zeus, the author of these crimes (in the Dryden translation this passage is given as Punish, great Jove, the author of these ills). Plutarch wrote that, according to Volumnius, Brutus repeated two verses, but Volumnius was only able to recall the one quoted.
Antonius, as a show of great respect, ordered Brutus' body to be wrapped in Antonius' most expensive purple mantle (this was later stolen and Antonius had the thief executed). Brutus was cremated, and his ashes were sent to his mother, Servilia Caepionis. His wife Porcia was reported to have committed suicide upon hearing of her husband's death, although, according to Plutarch (Brutus 53 para 2), there is some dispute as to whether this is the case: Plutarch states that there is a letter in existence that was allegedly written by Brutus mourning the manner of her death.
85 BC: Brutus was born in Rome to Marcus Junius Brutus The Elder and Servilia Caepionis.
58 BC: He was made assistant to Cato, governor of Cyprus which helped him start his political career.
This was the noblest Roman of them all: All the conspirators save only he Did that they did in envy of great Caesar; He only, in a general honest thought And common good to all, made one of them. His life was gentle, and the elements So mix'd in him that Nature might stand up And say to all the world "This was a man!"
John Wilkes Booth, the assassin of Abraham Lincoln, claimed to be inspired by Brutus. Booth's father, Junius Brutus Booth, was named for Brutus, and Booth (as Marcus Antonius) and his brother (as Brutus) had performed in a production of Julius Caesar in New York just six months before the assassination. On the night of the assassination, Booth is alleged to have shouted "Sic semper tyrannis" while leaping to the stage of Ford's Theater. Lamenting the negative reaction to his deed, Booth wrote in his journal on April 21, 1865, while on the run, "[W]ith every man's hand against me, I am here in despair. And why; For doing what Brutus was honored for ... And yet I for striking down a greater tyrant than they ever knew am looked upon as a common cutthroat." Booth was also known to be greatly attracted to Caesar himself, having played both Brutus and Caesar upon various stages. 
The well-known phrase "Et tu, Brute?" ("And you, Brutus?") is famous as Caesar's utterance in the play Julius Caesar, although they are not his last words, and the sources describing Caesar's death disagree about what his last words were.
In Dante's Inferno, Brutus is one of three people deemed sinful enough to be chewed in one of the three mouths of Satan, in the very center of Hell, for all eternity. The other two are Cassius, who was Brutus's fellow conspirator, and Judas Iscariot (Canto XXXIV). Dante condemned these three in the afterlife for being Treacherous Against Their Masters and enemies of the King/Emperor.
Shakespeare's play Julius Caesar depicts Caesar's assassination by Brutus and his accomplices, and the murderers' subsequent downfall. In the final scene, Marcus Antonius describes Brutus as "the noblest Roman of them all", for he was the only conspirator who acted for the good of Rome.
In the Masters of Rome novels of Colleen McCullough, Brutus is portrayed as a timid intellectual whose relationship with Caesar is deeply complex. He resents Caesar for breaking his marriage arrangement with Caesar's daughter, Julia, whom Brutus deeply loved, so that she could be married instead to Pompey the Great. However, Brutus enjoys Caesar's favor after he receives a pardon for fighting with Republican forces against Caesar at the Battle of Pharsalus. In the lead-up to the Ides of March, Cassius and Trebonius use him as a figurehead because of his family connections to the founder of the Republic. He appears in Fortune's Favourites, Caesar's Women, Caesar and The October Horse.
In the TV series Rome, Brutus, portrayed by Tobias Menzies, is depicted as a young man torn between what he believes is right, and his loyalty and love of a man who has been like a father to him. In the series, his personality and motives are somewhat inaccurate, as Brutus is portrayed as an unwilling participant in politics. In the earlier episodes he is frequently inebriated and easily ruled by emotion. Brutus' relationship to Cato is not mentioned, and his three sisters and wife Porcia are omitted from the series completely.
The Hives' song "B is for Brutus" contains titular and lyrical references to Junius Brutus.
The video game Assassin's Creed: Brotherhood features a small side story in the form of the "Scrolls of Romulus" written by Brutus, which reveals that Caesar was a Templar and Brutus and the conspirators were members of the Roman Brotherhood of Assassins. At the end of the side quest, the player is able to get Brutus' armor and dagger.
The cartoon character primarily known as "Bluto" was renamed "Brutus" for a few years.
The 1911 Italian silent film Brutus portrays the life of Brutus