Louis I, Prince of Anhalt-Köthen

Louis I of Anhalt-Köthen (German: Ludwig I., Fürst von Anhalt-Köthen; 17 June 1579 in Dessau – 7 January 1650 in Köthen), was a German prince of the House of Ascania and ruler of the unified principality of Anhalt. From 1603, he was ruler of the principality of Anhalt-Köthen. He was also a founder of the first German Society (the Fruitbearing Society).

Louis was the seventh son of Joachim Ernest, Prince of Anhalt, but fifth-born son of his second wife Eleonore, daughter of Christoph, Duke of Württemberg.

After the death of his father in 1586, Louis inherited the principality of Anhalt jointly with his half- and full brothers. The youngest of all the sons of Joachim Ernest who survived adulthood, he grew up in Dessau at the court of his older brother and guardian, John George I.

From 1596 to 1597 the seventeen-year-old Louis made a Grand Tour of Europe by traveling to Great Britain, France, and the Netherlands. By the beginning of 1598 he was in Switzerland, then visited Austria, Hungary, and Italy, where he remained until 1602. During a stay in Florence, Louis was accepted (with the assistance of his Italian tutor Bastiano de' Rossi) as the first German member of the Accademia della Crusca, in which he was known by the name "L'Acceso."

In 1603 a formal division of the principality of Anhalt was agreed upon by the surviving co-rulers. Louis received Köthen, where he took up his principal residence.

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