Louis IX: Did you mean...?

The compound monocular microscope of Louis Pasteur (1822-1895). Made by Nachet et fils, 1861-70. (Science Museum, London)

Louis-Antoine de Saint-Just (1767-1794), a leader of the Jacobin Club and of the Mountain political faction, oil on canvas portrait by Pierre-Paul Prud'hon, 1793. Only 25 when he was elected to the National Convention, Saint-Just soon became...

Battle of Poltava 1709, oil on canvas by Louis Caravaque. A painting depicting the decisive Russian victory at Poltava in 1709.

Restored studio portrait of Louis Pasteur (1822-1895), photographed by Paul Nadar.

Louis XIII of France (1601-1643), oil on canvas portrait by Philippe de Champaigne, 1635. Museo del Prado, Madrid.

Portrait of Anne of Austria (l. 1601-1666), widow of Louis XIII of France (r. 1610-1643), oil on canvas by Charles de Steuben between 1836-1838. Palace of Versailles.

Portrait depicting Louis René Édouard, cardinal de Rohan (1734-1803). A former ambassador, Cardinal de Rohan was despised by Queen Marie Antoinette of France and became embroiled in the affair of the diamond necklace in an attempt to win...

The death of Prince Louis Ferdinand of Prussia (1772-1806) in the Battle of Saalfeld (10 October 1806) during the War of the Fourth Coalition. Painting by Peter Edward Stroehling, c. 1806-1816. Royal Collection.

Portrait of Louis François Perrin de Précy, commander of the rebel army during the Revolt of Lyon in the Federalist Revolts (May-December 1793). By Jean-Joseph Dassy, 1829. In the Musée d'art et d'histoire de Cholet

Portrait of Louis Antoine de Bourbon-Condé, Duke of Enghien (1772-1804) whose scandalous arrest and execution sent shockwaves throughout Europe, turning many European aristocrats against the Bonapartist regime in France. Portrait by Jean-Michael...