The Musée des Jacobins is the town museum in Auch. It houses France's second biggest collection of Pre-Columbian art after the quai Branly, with which it has collaborated for many years. The museum garden is a 1600 square metre containing plants brought back from the Americas by the Conquistadors.
The museum was founded on 16 December 1793 and is one of France's oldest museums, housing over 20,000 objects, including 8,000 Pre-Columbian works. The building housing it, known as 'des Jacobins', was listed as a historic monument and was originally built as a Jacobin convent in the 15th century. The museum moved into it in 1979 after a major restoration project.
One of the major objects is Statue of Trajan, 1st century AD, discovered near Rome in the 18th century.
The Church of St Eustace was built between 1532-1632. St Eustace"s is considered a masterpiece of late Gothic architecture. The church’s reputation was strong enough of the time for it to be chosen as the location for a young Louis XIV to receive communion. Mozart also chose the sanctuary as the location for his mother’s funeral. Among those baptised here as children were Richelieu, Jeanne-Antoinette Poisson, future Madame de Pompadour and Molière, who was also married here in the 17th century. The last rites for Anne of Austria, Turenne and Mirabeau were pronounced within its walls. Marie de Gournay is buried there.
The origins of Saint Eustache date back to 13th century. The church became a parish church in 1223, thanks to a man named Jean Alais who achieved this by taxing the baskets of fish sold nearby, as granted by King Philip Augustus. To thank such divine generosity, Alais constructed a chapel dedicated to Sainte-Agnès, a Roman martyr.