John George I, Duke of Saxe-Eisenach
Johann Georg I, Duke of Saxe- Eisenach( Weimar, 12 July 1634 – hunting accident, Eckhartshausen, Marksuhl, 19 September 1686).
He was the fifth but third surviving son of Wilhelm, Duke of Saxe- Weimar and Eleonore Dorothea of Anhalt- Dessau.
After the death of his father( 1662), his older brother Johann Ernst II inherited Weimar, and his second brother Adolf Wilhelm received Eisenach.
Johann Georg received an income from the new duchy of Saxe- Eisenach and took his residence in the small town of Marksuhl.
In 1668 his brother Adolf Wilhelm died.
His fifth and only surviving son, Wilhelm August, was born eight days after his father's death and became duke from the moment of his birth; Johann George became the regent of the duchy and also the guardian of the new duke.
Wilhelm August died in 1671 at only two years of age, and Johann Georg inherited the duchy.
The next year( 1672) the death without heirs of the Duke Frederick Wilhelm III of Saxe- Altenburg forced a new treaty of division of the family lands between Johann Georg, his surviving brothers and his cousin.
Johann Georg was confirmed in his possession of Eisenach and took some towns, and his younger brother, Bernhard, inherited Jena.
Johann Georg thus became the founder of the most recent line of the dukes of Saxe- Eisenach, who became extinct in 1741.
He was ruler in 1685 when Johann Sebastian Bach was born in the duchy.
Johann Georg Kerner
Johann Georg Kerner (9 April 1770 - 7 April 1812) was a physician and a political journalist who became a critical chronicler of the French revolution.
Florent Gache
Florent Gache( born April 11, 1988 in Guilherand- Granges, Ardèche) is a French professional football player.
Currently, he plays for Le Puy Foot 43 Auvergne.
Gache made three appearances in Ligue 2 with Tours FC.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Prince Johann Georg of Hohenzollern
Johann Georg, Prince von Hohenzollern(" Johann Georg Carl Leopold Eitel- Friedrich Meinrad Maria Hubertus Michael"; 31 July 1932 – 2 March 2016) was a German prince, and through his marriage to Princess Birgitta of Sweden, was brother- in- law of King Carl XVI Gustaf of Sweden.
Prince Johann Georg was the sixth child of Frederick, Prince of Hohenzollern( Heiligendamm 30 August 1891 – Krauchenwies 6 February 1965) and his wife Princess Margarete Karola of Saxony( Dresden 24 January 1900 – Freiburg im Breisgau 16 October 1962).
Johann Georg Beck
Johann Georg Beck or Johann Georg Baek( 24 April 1676 in Augsburg – 7 August 1722 in Braunschweig) was a German engraver.
He taught fellow- Augsburger Johann Georg Schmidt, who married his widow Anna Elisabeth and took over the family studio.
Johann's son Anton August Beck trained in this studio and inherited it on Johann's death.
John George II, Duke of Saxe-Eisenach
Johann Georg II, Duke of Saxe- Eisenach( Friedewald, 24 July
1665 – Eisenach, 10 November 1698), was a duke of Saxe- Eisenach.
He was the second son of Johann Georg I, Duke of Saxe- Eisenach and Johannetta of Sayn- Wittgenstein.
The death of his older brother, Frederick August—who was killed in battle in 1684 — make him the new heir of the duchy of Saxe- Eisenach.
Two years later( 1686), Johann Georg succeeded his father when he died.
In Kirchheim unter Teck on 20 September 1688 Johann Georg married with Sophie Charlotte of Württemberg.
This union was childless.
When his cousin, the young Duke Johann Wilhelm of Saxe- Jena died( 1690) Johann Georg inherited a part of his duchy, because he was compelled to make a divisionary treaty with the Duke Wilhelm Ernst of Saxe- Weimar, his other cousin and brother- in- law of the late duke.
Johann Georg died suddenly of smallpox, and was succeeded by his brother, Johann Wilhelm.
Johann Georg von Browne
Count Johann Georg von Browne (or Johann Georg von Browne-Camus; 20 September 1767 – January 1827) was an officer in the Russian army, and settled in Vienna where he was a patron of Ludwig van Beethoven during the composer's early career.
Johann Georg Mozart
Johann Georg Mozart (4 May 1679 – 19 February 1736) was a bookbinder who lived in Augsburg, Germany, in the 17th and 18th centuries.
He was the father of Leopold Mozart and the paternal grandfather of Wolfgang Amadeus Mozart.
Johann Georg was the son of Franz Mozart, a master mason.
However, Johann Georg pursued a different career, becoming a master bookbinder.
He evidently advanced his career when he married Anna Maria Banegger, widow of his former master, and thus obtained his old master's guild license.
His first wife bore him no children and died in 1718.
His second wife was Anna Maria Sulzer (1696–1766), with whom he had 8 children over the years 1719–1735; 3 boys and 2 girls survived to adulthood.
Leopold, born 14 November 1719, was the oldest.
The family were Catholics and after 1722 lived in a house owned by the Jesuits.
They sent their two oldest sons to Jesuit schools.
Neither Johann Georg nor his wife Anna Maria had any direct influence on the life of their celebrated grandson.
Johann Georg died 20 years before Wolfgang Amadeus Mozart was born; and Leopold became estranged from his mother following his move in young adulthood to Salzburg (1737); hence there was no contact between grandmother and grandson during the period their lives overlapped.
Another son of Johann Georg, Franz Aloys Mozart (1727–1791), remained in Augsburg and followed his father's career as a bookbinder (he also occasionally published religious tracts).
He was the father of Maria Anna Thekla Mozart, Wolfgang's first cousin and friend.
Johann Georg Ritter von Zimmermann
Johann Georg Ritter von Zimmermann/ Johann Georg Zimmermann( 8 December 1728, in Brugg, Aargau7 October 1795, in Hanover) was a Swiss philosophical writer, naturalist, and physician.

Question: Who is younger, Johann Georg Kerner or Florent Gache?
Answer: Florent Gache