Emmanuel Maignan

His writings were particularly influential in Spain, where they were resisted by his fellow Minim Francisco Palanco.

In 1636 he was called to Rome by the general of the order to teach mathematics at the convent of the Trinità dei Monti.

There he lived for fourteen years, engaged in mathematics and in physical experiments, and publishing his work on gnomonics and perspective.

When Louis XIV, having seen his machines and curiosities at Toulouse, invited him to Paris, in 1669, through Cardinal Mazarin, he begged to be allowed to pass his life in the seclusion of the convent.

His published works are: This dissertation seemed to authorize usury and was therefore censured by a number of bishops [citation needed].