 In addition, she is mentioned in poems recorded in "Heimskringla" and "Egils saga" that date from the 9th and 10th centuries, respectively.An episode in the Latin work "Gesta Danorum", written in the 12th century by Saxo Grammaticus, is generally considered to refer to Hel, and Hel may appear on various Migration Period bracteates.In the "Poetic Edda", "Prose Edda", and "Heimskringla", Hel is referred to as a daughter of Loki.