Carl Elsener Sr. Carl Elsener Sr. Carl Elsener Sr. (also known as Charles Elsener, born 6 July 1922 in Ibach, † 1 June 2013 in Schwyz) was a Swiss entrepreneur. Carl Elsener was the grandson of Karl Elsener (1860-1918) and the son of Carl Elsener (1886-1950). Karl Elsener had opened a factory in Ibach for the production of knives and surgical instruments, from which the knife factory Victorinox developed. Carl Elsener led the company initially with his father and his brother Eduard Elsener (b. 1926). After the death of his father in 1950, he took over the management. The Swiss Army Knife is
Charles Augustus, Hereditary Grand Duke of Saxe-Weimar-Eisenach (1844–1894) the grandfather of Karl August. Her maternal grandparents were William I of Württemberg and his third wife Pauline Therese. Karl August and Pauline had two sons: Charles Augustus, Hereditary Grand Duke of Saxe-Weimar-Eisenach (1844–1894) Karl August, Hereditary Grand Duke of Saxe-Weimar-Eisenach (31 July 1844 – 20 November 1894) was a German prince and Hereditary Grand Duke ("Erbgroßherzog") of Saxe-Weimar-Eisenach. Born in Weimar, Karl was the only son of Karl Alexander, Grand Duke of Saxe-Weimar-Eisenach and Princess Sophie of the Netherlands. He would serve in the army of the Grand Duchy of Saxony (Saxe-Weimar-Eisenach) and he was present when Wilhelm I