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Cesare Borgia

Italian condottiero, cardinal and duke born in Papal States (1475) and died in Viana (1507), aged 32

Employees

Leonardo da Vinci (1452-1519) Florentine High Renaissance anatomist, painter, architect, sculptor, military engineer, scientist, inventor and writer

1502

In Cesena, Leonardo da Vinci begins work as senior military architect and general engineer for Cesare Borgia, son of Pope Alexander VI.

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1502

An anecdote from Luca Pacioli's De viribus quantitatis relates an incident with Leonardo da Vinci in his capacity as military engineer on campaign with Cesare Borgia.

One day Cesare Valentino, Duke of Romagna and present Lord of Piombino, found himself and his army at a river which was 24 paces wide, and could find no bridge, nor any material to make one except for a stack of wood all cut to a length of 16 paces. And from this wood, using neither iron nor rope nor any other construction, his noble engineer made a bridge sufficiently strong for the army to pass over.

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Source: Primary

Charles Nicholl; Nicholl, Charles. "Leonardo da Vinci. Flights of the Mind." E-book, p. 602.

1502

Leonardo da Vinci creates a map of Cesare Borgia's stronghold, a town plan of Imola in order to win his patronage.

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1502

Leonardo da Vinci gifts to his pupil Salai a precious garment given to him by Cesare Borgia.

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Agents

Cesare Borgia (1475-1507), aged 27: condottiero; cardinal; duke
Giocomo Salai (1480-1524), aged 22: painter

Source: Primary

Pedretti, Carlo. "Leonardo: A Study in Chronology and Style", p.142.

1502

June 26

on Thursday

5 months, 26 days later

Extract from a dispatch of Machiavelli to the Signoria of Florence concerning Cesare Borgia:

This Duke is so enterprising that nothing is too great to be discounted by him. For the sake of glory and the enlarging of his dominions, he deprives himself of rest, yielding to no fatigue, no danger. He arrives in one place before anyone knows he has left the other, he gains the good will of his soldiers, he attracts to him the best men in Italy, and he has constant good luck. For all these reasons he is victorious and formidable.

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Astronomical Events

The moon was in the last quarter that night.

Agents

Cesare Borgia (1475-1507), aged 27: condottiero; cardinal; duke
Machiavelli (1469-1527), aged 33: historian

Source: Primary

Machiavelli; "Leonardo da Vinci. The Flights of the Mind"; E-book, p. 595.

1502

August 18

on Monday

1 month, 23 days later

Passport drawn up in Pavia granting Leonardo da Vinci free access to the dominions of Cesare Borgia as his chief military architect:

Cesare Borgia of France, by the grace of God Duke of Romagna and Valence, Prince of the Adriatic, Lord of Piombino etc., also Gonfalonier and Captain General of the Holy Roman Church: to all our lieutenants, castellans, captains, condottieri, officials, soldiers and subjects to whom this notice is presented. We order and command that the bearer thereof, our most excellent and well-beloved architect and general engineer Leonardo Vinci, who by our commission is to survey the places and fortresses of our states, should be provided with all such assistance as the occasion demands and his judgement deems fit.

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Astronomical Events

The moon was a full moon that night.
Sunrise in Pavia was at 5:59 AM and sunset was at 6:06 PM.

1502

December 26

on Friday

4 months, 10 days later

Cesare Borgia kills Ramiro D'Orco; this incident is referenced in Machiavelli's The Prince.

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Astronomical Events

The moon was waning crescent that night.

Agents

Machiavelli (1469-1527), aged 33: historian
Cesare Borgia (1475-1507), aged 27: condottiero; cardinal; duke

Source: Primary

https://en.wikipedia.org/wiki/1502

1502

December 26

on Friday

Extract from a dispatch of Machiavelli to the Signoria of Florence while in the service of Cesare Borgia:

This morning Messer Rimino was found lying in the piazza cut into two pieces; he still lies there, so that everyone has had an opportunity to see him ... The reason for his death is not yet clear, except that such was the pleasure of the Prince, who shows is that he can make and unmake men according to their deserts.

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Astronomical Events

The moon was waning crescent that night.

1502

December 31

on Wednesday

5 days later

Cesare Borgia (son of Pope Alexander VI) occupies Urbino, where he imprisons two potentially treacherous allies, Vitellozzo and Oliveretto; he executes them the next morning.

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Astronomical Events

The moon was waxing crescent that night.
Sunrise in Urbino was at 6:00 AM and sunset was at 6:07 PM.

Agents

Cesare Borgia (1475-1507), aged 27: condottiero; cardinal; duke

Source: Primary

https://en.wikipedia.org/wiki/1502

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