October 25

on Monday

Francesco I Sforza marries Bianca Maria Visconti in Cremona.

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Astronomical Events

The moon was waxing gibbous that night.



46 years, 7 months, 21 days later

Leonardo da Vinci begins working on the apparatus for the festival celebrating the marriage of Gian Galeazo Sforza to Isabella of Aragon.

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January 15

on Tuesday

7 months, 18 days later

The daughter(1) of the Duke of Calabria passed through Florence, on her way to wed the Duke of Milan,(2) with a large escort of horsemen, and many Signori and matrons and damsels in her train; a very great and noble company. A magnificent escort was sent to meet her, at incalculable cost.

(1) Isabella d'Aragona. (2) Giangalleazzo Sforza.

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Astronomical Events

The moon was a full moon that night.


1 year, 11 months, 21 days later

Leonardo da Vinci assists in the preparations for the tournament held in honour of Ludovico Sforza's marriage to Beatrice d'Este. For this he devised an invasion by a company of dancing and singing Scythians or Tartars, costumed as savages and led by a rider mounted on a big horse and wearing a cloak covered with golden scales and painted with peacock's eyes. ('Leonardo da Vinci', p. 61)

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1 year later

Ludovico Sforza and Beatrice d'Este marry.

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Ludovico Sforza (1452-1508), aged 40: duke




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