Louis xiv: Did you mean...?

17th-century portrait of Louis the Pious, Holy Roman Emperor and King of the Franks (r. 814-840), by an unknown creator, c. 1610-1640. The British Museum, London.

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

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

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.

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.

A photo showing Castle of Saint Louis, a ruined crusader castle located in Sidon, Lebanon. Built by the French crusaders in 1254 CE.

9th-century silver coin depicting Louis the Pious, Holy Roman Emperor and King of the Franks (r. 814-840). The British Museum, London.

Louis XIII of France (r. 1610-1643) in armor, oil on canvas by Peter Paul Rubens, c. 1622-25. Norton Simon Museum, Pasadena, California.

Created in Tours, France, sometime between 1245-1248 CE, this stained glass panel depicts King Louis IX (r. 1226-1270 CE) carrying the crown of thorns. Measures 55 x 35 cm. (Metropolitan Museum of Art, New...

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