France from the Lakes to the Mississippi, and visiting New Orleans, he describes "a little village of about one hundred cabins dotted here and there, a large wooden warehouse in which I said Mass, a chapel in course of construction and two storehouses". In 1722 the Capuchins were assigned ecclesiastical responsibility for the Lower Mississippi Valley, while the Jesuits maintained a mission, based in New Orleans, to serve the indigenous peoples. The Jesuit vicar-general returned to France to recruit priests and also persuaded the Ursulines of Rouen to assume charge of a hospital and school. The royal patent authorizing the Ursulines to found a convent in Louisiana was issued September 18, 1726. Ten religious from various cities sailed from Hennebont on January 12, 1727, and reached New Orleans on August 6. As the convent was not ready, the governor gave up his residence to them. They opened a hospital for the care of the sick and a school for poor children. France surrendered New Orleans and the rest of Louisiana Territory west of the Mississippi to the Spanish under the Treaty of Paris of 1763. From then until 1783, East Florida and West Florida were under British control, but both Florida colonies reverted to Spain as part of the Peace of Paris in 1783. Pope Pius VI erected the Diocese of Louisiana and the Two Floridas encompassing the pioneer parishes of New Orleans and Louisiana and both Florida colonies on April 25, 1793, taking its territory from the Diocese of San Cristobal de la Habana, based in Havana, Cuba. The diocese originally encompassed the entire territory of the Louisiana Purchase, from the Gulf of Mexico to British North America, as well as the Florida peninsula and the Gulf Coast. This date of erection makes the present Roman Catholic Archdiocese of New Orleans the second oldest Catholic diocese in the present United States after the Roman Catholic Archdiocese of Baltimore, which the same pope had erected as the Diocese of Baltimore on November 6, 1789. The new diocese encompassed the area claimed by Spain as Louisiana, which was all the land draining into the Mississippi River from the west, as well as Spanish territory to the east of the river in modern-day Mississippi, Alabama, and Florida In April 1803, the United States purchased Louisiana from France, which had in 1800 forced Spain to retrocede the territory in the Third Treaty of