King Tibianus is the king of the Thaian kingdom, and has the power to promote worthy adventurers. Greet him by saying "Hail (to the beloved) King" or "Hello King" or else he will ignore you. If you swear at him his guards will attack you leaving you with only 1 Hitpoint. He may be an allusion to the roman emperor Tiberius III.
His dog is known as the best sniffer dog in the kingdom.