Louis IX: Did you mean...?

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...

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

A c. 1700 portrait by Hyacinthe Rigaud of Louis XIV of France (r. 1643-1715). (Louvre Museum, Paris)

Louis XIII Crowned by Victory, oil on canvas by Philippe de Champaigne, 1635. Louvre, Paris.

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

Louis I de Bourbon, Prince of Condé (1530-1569), oil on panel by an unknown French painter, 16th century. Palace of Versailles.

Portrait of Louis Philippe II, Duke of Orléans (1747-1793) with the insignia of the Grand Orient of France. Oil on canvas portrait by Michel Garnier, 1781. Condé Museum, Chantilly.

Portrait of Louis Philippe II d'Orléans, as the Duke of Chartres. Oil on canvas, after Joshua Reynolds, c. 1779. Musée Condé, Chantilly.

Bust of Louis Antoine de Saint-Just by French sculptor David d'Angers, 1848. David d'Angers Gallery, Angers, France. Photo credits to Wikipedia user Selbymay, 2011.

Louis Philippe II, Duke of Orléans, also known as Philippe Égalité (1747-1793), oil on canvas portrait by Antoine-François Callet, c. late 18th century. Palace of Versailles.