tiarna

I’m not sure what tiarna refers to. Could you provide some context? Is it a person, place, organization, term from a language, or a fictional concept? Do you want a real-world encyclopedic entry or a wiki-style article for a fictional setting? If it’s historical or geographic, please include region and approximate timeframe. If it’s fictional, should I create a concise, neutral entry with a defined meaning and scope? Once you clarify, I’ll draft a neutral article under 300 words.