Makaveli
 
Tupac before his death had assigned himself a new alias, the album Don Killuminati 7 Day Theory which was completed before his death was released under the name Makaveli. Makaveli comes from the political philosopher Machiavelli, while in prison Tupac read many of Machiavelli's teachings and was said to have took alot from the information he read. Tupac planned to create his own record label named 'Makaveli Records' and planned to sign the Outlawz and Greg Nice and possible other artists. The below image was planned to be the record label logo.
 
But why name himself after this philosopher? Who was Machiavelli? below is some more information:
 
Niccolo Machiavelli was born on May 3, 1469, in Florence, Italy. He eventually became a man who lived his life for politics and patriotism. Right now, however, he is associated with corrupt, totalitarian government. The reason for this is a small pamphlet he wrote called The Prince to gain influence with the ruling Medici family in Florence. The political genius of Niccolo Machiavelli was overshadowed by the reputation that was unfairly given to him because of a misunderstanding of his views on politics.

Machiavelli's life was very interesting. He lived a nondescript childhood in Florence, and his main political experience in his youth was watching Savanarola from afar. Soon after Savanarola was executed, Machiavelli entered the Florentine government as a secretary. His position quickly
rose, however, and was soon engaging in diplomatic missions. He met many of the important politicians of the day, such as the Pope and the King of France, but none had more impact on him than a prince of the Papal States, Cesare Borgia. Borgia was a cunning, cruel man, very much like the one portrayed in The Prince. Machiavelli did not truly like Borgia's policies, but he thought that with a ruler like Borgia the Florentines could unite Italy, which was Machiavelli's goal throughout his life. Unfortunately for Machiavelli, he was dismissed from office when the Medici came to rule Florence and the Republic was overthrown. The lack of a job forced him to switch to writing about politics instead of being active. His diplomatic missions were his last official government positions.

When Machiavelli lost his office, he desperately wanted to return to politics. He tried to gain the favor of the Medici by writing a book of what he thought were the Medici's goals and dedicating it to them. And so The Prince was written for that purpose. Unfortunately, the Medici didn't agree with what the book said, so he was out of a job. But when the public saw the book, they were outraged. The people wondered how cruel a man could be to think evil thoughts like the ones in The Prince, and this would come back to haunt him when he was alive and dead. However, if the people wanted to know what Machiavelli really stood for, they should have read his "Discourses on Livy", which explain his full political philosophy. But not enough people had and have, and so the legacy of The Prince continues to define Machiavelli to the general public.

A few years later the Medici were kicked out of Florence. The republic was re-established, and Machiavelli ran to retake the office he had left so many years ago. But the reputation that The Prince had established made people think his philosophy was like the Medici, so he was not elected. And here the sharp downhill of his life began. His health began to fail him, and he died months later, in 1527.

Machiavelli had been unfairly attacked all of his life because of a bad reputation. But it only got worse after he died. He was continually blasted for his "support" of corrupt ruling. In fact, Machiavellian now means corrupt government. Only recently has his true personality come to light. The world must change it's vision of the cold, uncaring Machiavelli to the correct view of a patriot and a political genius.

Source:
http://www.ctbw.com/lubman.htm