In 837, when Taihan would have been about 60, his name appears on a document of Buddhist precepts as one of the established monks of To-ji Temple, but thereafter nothing is known of what became of him.
837年（承和(日本)4年）、当時60歳として、僧綱牒に東寺定額僧として泰範の名が見えるが、それ以降の消息については不明である。