As I am writing my new novel about Nobunaga and Dosan, I am understanding Oda Nobuhide a bit more. I found some information about Nobuhide's mother. Inui no Kata/Ganshouin died in 1527. She was the daughter of Oda Chikuzen no Kami Sukeyori. Oda Nobuhide built a temple in honor of her mother in 1528, Ganshouji.
Link for temple information in Japanese:http://www.nagoya-tmo.jp/viewpoint/data2_024.html
Nobunaga no tame!