Duke Ernest Frederick of Saxe-Hildburghausen was a German nobleman born on January 24, 1727. He belonged to the House of Saxe-Hildburghausen, a branch of the larger House of Wettin. Ernest Frederick ruled as Duke from 1745 until his death in 1780, overseeing a small territory in what is now Thuringia, Germany. During his reign, he focused on improving the economy and infrastructure of his duchy. He was known for his interest in the arts and education, promoting cultural development in his region. His leadership contributed to the stability and growth of Saxe-Hildburghausen during the 18th century.