Geirröd

Geirröðr (also Geirröd) is a jötunn in Norse mythology. He is the father of the gýgjar Gjálp and Greip, who are killed by the thunder-god Thor. Geirröðr is mentioned in the skaldic poem Þórsdrápa, written by Eilíf Godrúnarson (late 10th c. AD), itself cited in Skáldskaparmál (early 13th c.) where it is preceded by Snorri Sturluson's account of the myth, and in Gesta Danorum by Saxo Grammaticus (early 13th c.). Saturn's moon Geirrod is named after him.