General Baron Hubert Rohault de Fleury (2 April 1779 – 21 September 1866) was a French soldier who played a major role in the fortifications of Lyon.

Jean-Baptiste Louis Rohault, a cloth and silk merchant, established himself in Paris on the rue Saint-Honoré in the middle of the 18th century.

His son, Hubert Jean-Baptiste Rohault de Fleury, born in 1750, was an advocate of the Parliament of Paris and keeper of the records of the Company of the Indies.

[2] During the Napoleonic Wars, Hubert Rohault de Fleury was promoted to captain in 1801, and served in the campaign in Portugal, then was transferred to Boulogne.

[4] After the fall of Napoleon, Rohault de Fleury gave his allegiance to Louis XVIII of France and remained faithful to the King during the Hundred Days in 1815.

[4] After the July Monarchy was established in 1830, Rohault de Fleury was named senior commander of the defensive works of Lyon.

The existing Croix-Rousse fort retained its layout, but the bastion of St-Jean on the Saône side was made into a powerful artillery position.

[3] Fortifications on the left bank of the Rhône were the haut-Rhône battery (1854), demolished fifteen years later, and the forts of Brotteaux (1831), Villeurbanne or Montluc (1831 – now a police station), Tête d'Or (1832) and Charpennes (1842).