This article or section refers to elements from Original Dune.
Geoff was a Fremen of Sietch Tabr. He was the first husband of Harah. Geoff was called out and killed by Jamis, who subsequently took Harah as his wife.
Together with Harah Geoff had a son, Kaleff, whom Jamis took as his own, and made no distinction between him and his own son with Harah, Orlop.