saneiden

Could you clarify what "saneiden" refers to? It could be a misspelling or transliteration of different terms (for example, the Sanhedrin, the ancient Jewish council), or it might be a fictional organization from a specific work. If you can indicate which sense you want (historical, religious, fictional, or a particular source), I can write a concise, neutral wiki-style article under 300 words. If you meant the Sanhedrin, I can proceed with a standard historical overview; if it’s a fictional group, please provide the source or key details you’d like included (formation, structure, purpose, notable events).