Edward Smith-Stanley, 4th Earl of Derby (1775-1851), was a British nobleman and politician. He served as a Member of Parliament and held the position of Lord Lieutenant of Lancashire. Known for his interest in agriculture, he was involved in various agricultural societies and promoted advancements in farming techniques. The 4th Earl was also a prominent figure in the British political landscape during the early 19th century. He was a member of the Tory party and played a role in the development of policies related to land and rural affairs. His contributions helped shape the agricultural practices of his time.