It is named after one of the ancestors of Ottar in Norse mythology. Tollefsen was born in Glemmen and studied accordion with Ottar E. Akre. He was a brother-in-law of Karl Magnus Satre and Paul Ottar Satre. CPH was discovered by Norwegians Ottar Sjaastad and Inge Dale in 1974. Ohthere ("Ottar") also occurs as the father of Aedgils ("Adils") in Ynglingatal. Snorri Sturluson, however, gave the name Vendelcrow to Egil's son Ottar (Ohthere). Olympic skier Ottar Satre set a record jump of in 1937. Then Ottar, overhearing, reveals that his formal name is indeed Thorfinn Karlsefni. A paper published by RFSU bears the name "Ottar", to honour Elise Ottesen-Jensen.