regeixen

I couldn’t locate a widely recognized topic by the name “regeixen.” To write a concise, neutral wiki-style article, I need a bit more context. Could you specify what regeixen refers to—an individual, a place, an organization, a concept, or a fictional entity? In which language or country is the term used, and do you have any source or definition I should base the article on? If you’d like, I can draft a provisional, neutral stub describing regeixen as a fictional term or placeholder and adjust it once you provide more details.