Jean Jourden
Jean Jourden( born 11 July 1942) is a retired French cyclist.
As an amateur he won the road race at the 1961 UCI Road World Championships.
In 1965 he turned professional and competed until 1972.
He won several minor races and rode the Tour de France in 1968 and 1969.
His brother Henri was also a cyclist.
Ludwig I of Bavaria
Ludwig I or Louis I( 25 August 1786 – 29 February 1868) was king of Bavaria from 1825 until the 1848 revolutions in the German states.
Louis Nékám
Lajos Sándor Nékám or Louis Nékám( June 4, 1868 – January 29, 1957) was a noted Hungarian dermatologist.
Louis Ruquoy
Lieutenant- General baron Louis Ruquoy( or Louis Rucquoy)( 1861 – 1937) was the Chief of Staff of the Belgian Army during the second part of the First World War.
Louis I, Landgrave of Thuringia
Ludwig I or Louis I( died January 12, 1140) was ruler of Thuringia from 1123 to 1140.
Louis R. Caplan
Louis R. Caplan( born December 31, 1936) is an American physician who is a senior member of the Division of Cerebrovascular Disease at Beth Israel Deaconess Medical Center, Boston.
He is a Professor of Neurology at Harvard Medical School, Boston, and the founder of the Harvard Stroke Registry at Beth Israel Deaconess Medical Center.
Caplan is the author or editor of 51 books and more than 700 articles in medical journals.
George Lewis Becke
George Lewis Becke( or Louis Becke; 18 June 1855 – 18 February 1913) was an Australian Pacific trader, short- story writer and novelist.
André Boucher
André Boucher( 5 May 1910, Bernay, Eure – 27 January 1993, Rouen) was a French moderate professional racing cyclist and a talented coach who trained the Tour de France winner, Jacques Anquetil, and the world champion, Jean Jourden.
He is remembered by a memorial in Rouen.
Louis II, Duke of Bavaria
Ludwig I or Louis I of Upper Bavaria( 13 April 1229 – 2 February 1294) was Duke of Upper Bavaria and Count Palatine of the Rhine from 1253.
He is known as Ludwig II or Louis II as Duke of Bavaria, and also as Louis the Strict.
Born in Heidelberg, he was a son of duke Otto II and Agnes of the Palatinate.
She was a daughter of the Welf Henry V, Count Palatine of the Rhine, her grandfathers were Henry XII the Lion and Conrad of Hohenstaufen.
Lucy Jane Parkinson
Lucy Jane Parkinson or LoUis CYfer is a British actor and drag king.

Question: Who was born earlier, Louis R. Caplan or Jean Jourden?
Answer: Louis R. Caplan