Frederick Augustus II (; 18 May 1797 – 9 August 1854) was King of Saxony and a member of the House of Wettin.
He was the eldest son of Maximilian, Prince of Saxony – younger son of the Elector Frederick Christian of Saxony – by his first wife, Caroline of Bourbon, Princess of Parma.
Life
Early years
From his birth, it was clear that one day Frederick Augustus would become the ruler of Saxony. His father was the only son of the Elector Frederick Christian of Saxony who left surviving male issue. When King Frederick Augustus I died (1827) and Anton succeeded him as King, Frederick Augustus became second in line to the throne, preceded only by his father Maximilian. However, he took no part in the administration of the country.
He was an officer in the War of the Sixth Coalition. However, he had little interest in military affairs.
Co-Regent to the Kingdom
The July Revolution of 1830 in France marked the beginning of disturbances in Saxony that autumn. The people claimed a change in the constitution and demanded a young regent of the kingdom to share the government with the King Anton. On 1 September the Prince Maximilian renounced his rights of succession in favor of his son Frederick Augustus, who was proclaimed Prince Co-Regent (de: Prinz-Mitregenten) of Saxony. On 2 February 1832 Frederick Augustus brought Free Autonomy to the cities. Also, by an edict of 17 March of that year, the farmers were freed from the corvée and hereditary submission. His popularity and liberal reforms quickly ended the discontent.
In addition to his interest in fossils, Frederick Augustus devoted his leisure hours chiefly to the study of botany. He made botanical excursions into different countries, and his Flora Marienbadensis, oder Pflanzen und Gebirgsarten, gesammelt und beschrieben was published in Prague in 1837.
Without legitimate issue, after his death Frederick Augustus was succeeded by his younger brother, Johann.