Among other blind mathematicians was the Dutchman, Borghes (died in 1652); the French astronomer, the Count de Pagan, who died in 1655; Galileo; the astronomer, Cassini, and Berard, who became blind at twenty-three years, and was for a long time Professor of Mathematics at the College of Briancon.
In the seventeenth century the sculptor, Jean Gonnelli, born in Tuscany, became blind at twenty years; but in spite of his infirmity he afterward executed what were regarded as his masterpieces.

It is said that he modeled a portrait of Pope Urban VIII, using as a guide his hand, passed from time to time over the features.

Lomazzo, the Italian painter of the eighteenth century, is said to have continued his work after becoming blind.
Several men distinguished for their bravery and ability in the art of war have been blind.

Jean de Troczow, most commonly known by the name of Ziska, in 1420 lost his one remaining eye, and was afterward known as the "old blind dog," but, nevertheless, led his troops to many victories.

Froissart beautifully describes the glorious death of the blind King of Bohemia at the battle of Crecy in 1346.