Cesare and the King of France organize their wedding, one after another, the day of the Assumption, a date when it rains consistently. Cardinal Orsini, very sick, terrified of what awaits him after his death when he thinks about his relationships with friends and enemies of the pope. Lucrezia plays on the big surge of hope caused by the salvation and the power of forgiveness to ease political tensions.

The episode is marked by Sorrows hitting the Borgia family. Kneeling before the tomb of Juan Vannozza pray the Rosary of the Seven Sorrows aloud. Lucrezia interrupts to ask about new secrets about their family she has heard. Vannozza refuses to answer but encouraged to meditate on Fifth pain. During his prayer, Lucrezia begins to understand the secret history of his family and is considering how to fix past mistakes.

Outside of Italy, rebellion stirs and the Cardinals fear they'll lose their power, while plans begin for Lucrezia's next marriage.

Cesare is brought to La Mancha and goes on trial before the Inquisition, while Lucrezia must use extreme measures to save her marriage.

A violent rainstorm fell on Rome. Rodrigo Borgia, Pope Alexander VI, is doing sex with his mistress, Giulia Farnese, when the ceiling of the papal chamber collapses on them. Rodrigo found alive under the debris, is in shock. Like the apostles, he began to speak in different languages​​, believing that the Holy Spirit is in him.

Each member of the Trinity, Borgia (Rodrigo, Cesare and Lucrezia) must find his own unit: head, heart and soul. Rodrigo confronts his addiction to drugs, Cesare intrigue at the court of the King of France to win the hand of Carlotta, while Lucrezia must overcome the sad reality of her love life.

On the occasion of this celebration, Cardinal Riario Sansoni organizes morality recounting the story of Alexis. Far from these concerns, Cesare continuing negotiations to try to raise an army and get a title and a wife. Conversely, Lanzol asks to leave Rome and intrigues in order to devote himself more confidently to Christ.

The crowds gathered on Saint Peter's Square in Rome, while another big celebration takes place in Spoleto. This episode, largely devoted to the celebration, the narrative ends by Rodrigo Transfiguration to a group of children. The story is accompanied by a warning to adults who listen Rodrigo, including Giulia and Virginio Orsini. Rodrigo, Lucrezia and Cesare are transformed as they endorse their new roles, sometimes an inspiration to others, sometimes manipulative attempt to influence them.

Cesare loses his lover and his daughter, leading to a painful defeat, and Lucrezia's betrothal becomes politically and emotionally complex.

Cesare Borgia celebrates Mass on Ash Wednesday for the King of Naples and his court. According to the liturgical texts, Cesare made ​​a sign of the cross on the forehead of each participant with ash, in these words: "Remember that you are dust and to dust you shall return." But when comes the turn of King Federico d'Aragona, Cesare draws a "C" on his forehead. Thus causing the sovereign Cesare stands in contradiction with the spirit of contrition associated with this holiday.

Sent by Pope Alexander VI, Cesare and Alessandro are entering in Florence. Unlike Jesus, they are not greeted by hosannas and palm leaves, but by the looks of reproach and disapproving murmurs. Under the control of Savonarola, Florence Florence libertine became austere. Later, Cesare attends Mass on Palm Sunday, celebrated by Savonarola. During the ceremony, Nicolas Machiavelli discusses Cesare hoping to join the clandestine opposition to Savonarola. Ironically, Machiavelli tends to Cesare a sling, made with palm leaves tied in a bow shape.

Cesare's new mistress could trigger a diplomatic incident, and public allegations of debauchery are made against the Borgia family.

When one of his commanders captures a city without authorisation, Cesare must appease a ruler. Lucrezia's son suffers a potentially mortal fall.

While Rodrigo engages in delicate politics, Leonardo da Vinci offers Cesare a powerful weapon and murder visits the Borgia family.

Cesare's renegade generals mount a rebellion against him, while those close to Rodrigo conspire against him, all on the eve of Lucrezia's wedding.

With a new pope crowned and order breaking down, Cesare finds himself with more and stronger enemies than ever.

Cesare stands trial for treason against the Holy See and the Ten Commandments, with his old friend Niccolo Machiavelli as prosecutor.

Though officially their uncle, Cardinal Rodrigo Borgia gathers his three children, but Juan's and Cesare's lack of control threaten his life's work.

When a plot to poison the pope is baffled and the pontiff's original testament restored, Cesare watches his brother rise further in Rodrigo's esteem.

A quarrel starts among the cardinals and old reckonings are being settled, while Cesare offers his son as a sacrifice to God, abandoning the newborn.

Rodrigo promises estates and offices for those voting in his favour, and when white smoke rises, he leaves the conclave as Pope Alexander VI.

As peace remains brittle, Rodrigo publicly acknowledges his paternity of Juan, Cesare, Lucrezia and Goffredo to strengthen the family bonds.

Instead of keeping the peace, Rodrigo gives in to Giulia's urging and has his men take up arms, but under Juan's command the campaign fails.

With his enemies advancing and his troops deserting Juan's command, Rodrigo has to take a tough decision that puts Cesare's life at stake.

By the intervention of Spain, France is forced to withdraw, but Isabella of Spain demands a purge of the Jews from the Eternal City.