Duke Joseph of Saxe-Altenburg was a German nobleman born on March 15, 1820. He was a member of the House of Saxe-Altenburg, a branch of the larger House of Wettin. Joseph became the Duke of Saxe-Altenburg in 1848 and ruled until his death in 1868. His reign was marked by efforts to modernize the duchy and improve its infrastructure. Joseph was known for his interest in the arts and education, promoting cultural initiatives during his time as duke. He was also involved in various political matters within the German Confederation, reflecting the complexities of German politics in the 19th century.