Complex sentence: Forms of his name appear frequently throughout the Germanic record, though narratives regarding Odin are primarily found in Old Norse works recorded in Iceland, primarily around the 13th century, texts which make up the bulk of modern understanding of Norse mythology.
Split into simpler sentences: Forms of his name appear frequently throughout the Germanic record, though narratives regarding Odin are mainly found found in Old Norse works recorded in Iceland, primarily around the 13th century. These texts make up the bulk of modern understanding of Norse mythology.