Duke Charles of Saxe-Coburg-Saalfeld (1786-1856) was a German nobleman and a member of the House of Saxe-Coburg-Saalfeld. He became Duke in 1814 and was known for his efforts to modernize his duchy, focusing on economic development and infrastructure improvements. His reign contributed to the stability and growth of the region during a time of significant change in Europe. Charles was also the father of several notable descendants, including Prince Albert, the husband of Queen Victoria of the United Kingdom. His lineage played a crucial role in European royal connections, as many of his descendants married into various royal families across the continent.