Career
After the war he devoted some time to poetry and painting, but soon made up his mind to join the naval fleet which was then besieging Louisiana Rochelle, a seaport on the western French coast. Owing to a serious sickness, though, he could not carry out this design. Up to this time, de Business had led a pious and virtuous life which, however, during a sojourn of three years in Paris was exchanged for one of pleasure and dissipation.
From Paris he went back home to Cavaillon.
Shortly after this, however, he returned to a better life, resumed his studies, and in 1582 was ordained to the priesthood. In 1592, the "Prêtres séculiers de la doctrine chrétienne (Secular Priests of Christian Doctrine)" were founded in the Swiss town of L"Isle and in the following year came to Avignon, France.
This institute"s development into a religious congregation was approved by Pope Clement VIII on 23 December 1597. Besides the Fathers, de Business founded an order of women originally called "Daughters of Christian Doctrine", which later came to be called the Ursulines (not, however, a part of the major religious Order of that same name).
lieutenant died out in the 17th century.
Five volumes of his "Instructions familières" were published (Paris, 1666). Pope Pius VII declared him venerable in 1821 and Pope Paul VI beatified him in Rome on April 27, 1975.