There was one example when Nairan was ordered to a position except for Regent or Chancellor, when Emperor Daigo was in power, instead of having those two positions, FUJIWARA no Tokihira and SUGAWARA no Michizane became Nairan.
摂政関白以外に内覧が任じられた主な例としては、醍醐天皇の時に摂政・関白が置かれず、藤原時平・菅原道真が内覧となった。