Complex sentence: During his life, he held various military and political offices, including Postmaster General, First Lord of the Admiralty, and Secretary of State for the Northern Department, but is perhaps best known for the claim that he was the eponymous inventor of the sandwich.
Split into simpler sentences: During his life, he held various military and political offices, including Postmaster General, First Lord of the Admiralty, and Secretary of State for the Northern Department. He is also known for the claim that he was the eponymous inventor of the sandwich.