Udaijin

The udaijin was the Junior Minister of State, overseeing all branches of the Daijō-kan. He would be the deputy of the sadaijin. The post of udaijin, along with the rest of the Daijō-kan structure, gradually lost power over the 10th and 11th centuries, as the Fujiwara came to dominate politics more and more. The system was essentially powerless b...
Found on http://en.wikipedia.org/wiki/Udaijin

Udaijin

Minister of the Right; one of the imperial ranks held by Oda Nobunaga.
Found on http://www.samurai-archives.com/vocab.html
No exact match found