According to Ferdinand Bohlmann, the first naturally occurring acetylenic compound, dehydromatricaria ester, was isolated from an Artemisia species in 1826.

One of the resulting Ernestine houses, known as Saxe-Coburg-Saalfeld until 1826 and Saxe-Coburg and Gotha after that, went on to contribute kings of Belgium ( from 1831 ) and Bulgaria ( 1908 – 1946 ), as well as furnishing husbands to queens regnant of Portugal ( Prince Ferdinand ) and the United Kingdom ( Prince Albert ).

In 1838 Bellagio received with all honours the Emperor Ferdinand I, the Archduke Rainer and the Minister Metternich, who reached here from Varenna on the Lario, the first steamboat on the lake, having been launched in 1826.

The European and scientific discovery of the koala in Australia was made at Mount Kembla and took place between June – August 1803 and involved type specimens collected and brought in to Sydney in August 1803 where they were immediately figured by botanical draughtsman Ferdinand Bauer ( 1760 – 1826 ) and described by noted botanist Robert Brown ( 1773 – 1858 ).

* Ferdinand Bauer ( 1760 – 1826 ), Austrian botanical illustrator

), married Achille Ferdinand Brunetiere in 1826 ;

Ferdinand Lucas Bauer ( 20 January 1760 – 17 March 1826 ) was an Austrian botanical illustrator who travelled on Matthew Flinders ' expedition to Australia.

* The History of the Inquisition of Spain, from the Time of Its Establishment to the Reign of Ferdinand VII, abridged English translation of the Historia, 1826.

The notation was introduced by Andreas von Ettingshausen in 1826, although the numbers were already known centuries before that ( see Pascal's triangle ).

* 1781 – Johann Baptist von Spix, German scientist ( d. 1826 )

* 1826 – Joseph Victor von Scheffel, German poet ( d. 1886 )

* Georg von Reichenbach 1771 – 1826, Bavaria ( Germany )

In opera, a new Romantic atmosphere combining supernatural terror and melodramatic plot in a folkloric context was first successfully achieved by Carl Maria von Weber ( 1786 – 1826 ) and perfected by Richard Wagner ( 1813 – 1883 ) in his Ring Cycle.

* 1826 – Joseph von Fraunhofer, German physicist ( b. 1787 )

* 1826 – Carl Maria von Weber, German composer ( b. 1786 )

* 1826 – Constantin von Ettingshausen, Austrian geologist and botanist ( d. 1897 )

A collection of his writings on harmony, in three volumes, was published under the care of his pupil Ignaz von Seyfried ( 1776 – 1841 ) in 1826.

* 1787 – Joseph von Fraunhofer, German physicist ( d. 1826 )

* 1786 – Carl Maria von Weber, German composer ( d. 1826 )

Topelius initially thought of writing a trivial entertainment, but having heard extracts from the opera project at a concert in 1851, he realized that Pacius was writing a grand opera on the theme of salvation, following the early Romantic style of Carl Maria von Weber's Der Freischütz ( 1821 ) and Oberon ( 1826 ).

** Carl Maria von Weber, German composer ( d. 1826 )

* Carl Maria von Weber ( 1786 – 1826 ) was Kapellmeister at the Bresault theater ( 1804-1807 ) and Kapellmeister at Dresde for Count Heinrich Vitzthum ( 1816-1826 ).

Carl Maria Friedrich Ernst von Weber ( 18 or 19 November 17864 / 5 June 1826 ) was a German composer, conductor, pianist, guitarist and critic, one of the first significant composers of the Romantic school.

* 1826 — Karl von Baer showed that the eggs of mammals are in the ovaries, ending a 200-year search for the mammalian egg.

Joseph Fraunhofer, ennobled in 1824 as Ritter von Fraunhofer ( 6 March 1787 – 7 June 1826 ) was a German optician.

** Carl Maria von Weber ( 1786 – 1826 ), German composer ; cousin of the four Weber sisters

Georg Balthazar von Neumayer ( 21 June 1826 – 24 May 1909 ), was a German polar explorer and scientist who conceived the idea of international cooperation for meteorology and scientific observation.

These included leading figures of the European ' Enlightenment ' including the philosophers Voltaire, 1694 – 1778 ) and Jean-Jacques Rousseau ( 1712 – 1778 ); the future US Presidents John Adams ( 1735 – 1826 ) and Thomas Jefferson ( 1743 – 1826 ); Benjamin Franklin ( 1706 – 1790 ); the German landscape artist Prince Hermann von Pückler-Muskau ; the Italian statesman Giuseppe Garibaldi ( 1807 – 1882 ); Russian Tsars Nicholas I ( 1796 – 1855 ) and Alexander I ( 1777 – 1825 ); the king of Persia ; Queen Victoria ( 1819 – 1901 ) and Prince Albert of Saxe-Coburg ( 1819 – 61 ); Sir Walter Scott ( 1771 – 1832 ); Prince Leopold III, Duke of Anhalt-Dessau ( 1740 – 1817 ); Prime Ministers William Ewart Gladstone ( 1809 – 1898 ) and Sir Robert Walpole ( 1676 – 1745 ); Queen Caroline of Brandenburg-Ansbach ( 1683 – 1737 ); John Stuart, 3rd Earl of Bute ( 1713 – 92 ) his architect William Burges ( 1827 – 1881 ) and the present Prince of Wales and Princess Margaret.

* In 1826, Carl Maria von Weber's opera, Oberon, ( written after a poem by Christoph Martin Wieland ) debuted at Covent Garden in London, England.

On 31 December 1864, in Moscow, Dumas married Nadjeschda von Knorring ( 1826 – April 1895 ), daughter of Johan Reinhold von Knorring and widow of Alexander, Prince Naryschkine.

In later years Tieck carried on a varied literary activity as critic ( Dramaturgische Blätter, 2 vols., 1825 – 1826 ; Kritische Schriften, 2 vols., 1848 ); he also edited the translation of Shakespeare by August Wilhelm Schlegel, who was assisted by Tieck's daughter Dorothea ( 1790 – 1841 ) and by Wolf Heinrich, Graf von Baudissin ( 1789 – 1878 ); Shakespeares Vorschule ( 2 vols., 1823 – 1829 ); the works of Heinrich von Kleist ( 1826 ) and of Jakob Michael Reinhold Lenz ( 1828 ).

Gautier began writing poetry as early as 1826 but the majority of his life was spent as a contributor to various journals, mainly La Presse, which also gave him the opportunity for foreign travel and for meeting many influential contacts in high society and in the world of the arts.

When one of the students, the 18-year-old budding journalist and writer Viliam Pauliny-Tóth ( 1826 – 1877 ), wrote down the oldest known record of the poem in his school notebook in 1844, he gave it the title of Prešporskí Slováci, budúci Levočania ( Bratislava Slovaks, Future Levočians ), which reflected the motivation of its origin.

At the centre of the children's creativity were twelve wooden soldiers which Patrick Brontë gave to Branwell at the beginning of June 1826.

In 1826, Soule gave Brownlow his first assignment — the Black Mountain circuit in North Carolina.

* 1826 Government gave Carey " Grant in Aid " for education.

In 1826, Dix married Catherine Morgan, the adopted daughter of Congressman John J. Morgan, who gave Dix a job overseeing his upstate New York land holdings in Cooperstown.

In 1826, Ms. Brooks began a correspondence with the English Poet Laureate, Robert Southey, who praised her work heartily and gave her the pseudonym " Maria Del Occidente " ( Maria of the West ).

Further, Lanner and Strauss I worked together often despite having severed their partnership and even gave a benefit concert for their former employer, Michael Pamer who was taken ill in 1826 at the same establishment where they separated.

On 1 November 1826 he died at his home near Bedford Square, London, being survived by his wife, who gave birth to a daughter after his death.

Schwanthaler in 1826 went to Italy as a pensioner of the king, and on a second visit in 1832 Thorvaldsen gave him kindly help.

In 1826, Ida married her wealthy cousin Friedrich Wilhelm Adolph Graf von Hahn, which gave her the doubled name.