Loggnes

I’m not finding a clearly defined concept or place named “loggnes.” To write a precise wiki-style article, please clarify what Loggnes refers to. Is it a real place, a person, a cultural or technical concept, a product, or a fictional or creative term? If you’d like, I can also create a concise, neutral stub for a fictional Loggnes, describing its imagined geography, history, and significance in under 300 words.