Sounds like it to me.
From the PBS Website:
Regular salons inside the Medici Palace bring together the cream of Florence's literati. Inspired, Botticelli creates an entirely new genre of art. Into a world dominated by the Church, Lorenzo injects a spirit of secular freedom yet he is also making enemies fast.
The Pazzi family are jealous of Lorenzo's awesome power. With the support of the Pope, they plot to murder both Lorenzo and his brother.
Murder in the Cathedral
Easter Sunday, April 26, 1478: Thousands pack inside the great cathedral of Florence. Amongst them, Lorenzo, his brother, and the Pazzi family. At the height of the ceremony, hired assassins swoop on the Medici brothers. Giuliano is stabbed 19 times and dies in front of his horrified family. Lorenzo vanishes.
The city descends into chaos. Word spreads of assassination, and the Pazzi try to seize control. Suddenly, at the windows of his palace, Lorenzo emerges, blood-soaked and wounded, but alive.
The city turns on the Pazzi, and its vengeance is brutal.
Il Magnifico
Giuliano's murder shocks Italy. Allies of the Pazzi want to finish the job that they started, and declare war on Florence. Lorenzo travels alone, to negotiate with the godfathers of the south. ?Perhaps God wills that this war, which began with the blood of my brother and myself, should be ended by my means.?
He returns to Florence triumphant, having bribed the King of Naples and foiled the Pope. Hailed il Magnifico (magnificent) by his grateful city, Lorenzo eliminates all opposition. He adopts his dead brother's bastard son, and brings the entire government under his personal control. Lorenzo is now a dictator.