Franckensteina Strataemontanus is the sixth studio album by Dutch symphonic black metal band Carach Angren. Released on 26 June 2020 through Season of Mist, it is a concept album inspired by the life of late 17th-century/early 18th-century German occultist Johann Konrad Dippel, whose controversial experiments with corpses allegedly inspired Mary Shelley's influential 1818 Gothic novel Frankenstein; or, The Modern Prometheus; its title is a reference to a Latin epithet adopted by Dippel later in life. It is also their final release with long-time drummer and founding member Ivo "Namtar" Wijers, who left the band as soon as the recording sessions ended citing "dissatisfactions with the music industry".