The story of Coriantumr (/ˌkɒriˈæntəmər/)[1] son of Omer, in the Book of Mormon, is that he is a Jaredite prince and one of three Coriantumrs also mentioned in the Book of Mormon. His account is found in chapter 8 of the Book of Ether. The account tells the story of how Coriantumr and his brother rescue their father, Omer, from captivity and restore the throne. They then show mercy toward the brother who brought Omer into captivity.
Coriantumr is recounted as a son of Omer, who is the king of the Jaredites.[2] In this story, Omer is overthrown by his son Jared, who keeps him imprisoned for many years. Born while Omer is held prisoner, Esrom and Coriantumr restore their father as king of the Jaredites twice.[3] When Coriantumr and Esrom's campaign succeeds, they spare their brother's life, instead confining him to servitude.[4]