Friedrich Ritter (physician)
Dr. Friedrich Ritter was a German physician and a self-professed philosopher and theosophist. In 1929, seeking a utopian "Robinson Crusoe" life away from civilisation, he moved to the uninhabited Floreana Island in the Galapagos with his companion, Dore Strauch.
He was a key figure in the "Galapagos Affair", a mysterious series of events involving other settlers that included disappearances and deaths.