Writing
Gustav Lorentzen
September 28 1947 – April 21 2010- Place of birth: Bergen, Norway
- Gender: Male
- Also known as: Gustav Fredrik Lorentzen, Ludvigsen
Gustav Fredrik Lorentzen was a Norwegian musician, comedian and writer. He is best known to most as his alter ego "Ludvigsen" in the duo Knutsen & Ludvigsen (1970–1986).
