克里斯托夫·托爾金
According to Christopher Tolkien, it is no longer possible to trace the exact date of composition of the two poems in "The Legend of Sigurd and Gudrun", though circumstantial evidence suggests that they date from the 1930s. In his foreword, Christopher Tolkien writes: "He scarely ever (to my knowledge) referred to them. For my part, I cannot recall any conversation with him on the subject until very near the end of his life, when he spoke of them to me, and tried unsuccessfully to find them."