Oda graves at Entokuji Temple in Gifu City.
Saito Dosan scored a major victory over Nobunaga's father, Nobuhide in 1547. Nobuhide attacked Mino, but failed. The losses were so high that eventually Nobuhide had enough and made peace with Dosan. The end result would be Dosan's daughter marrying the "Fool of Owari" (Nobunaga) a year later.
This passage is from the Shincho-Ko ki and the modern text was translated by Nakagawa Taiko. Please forgive me while my translation is not the best.
(pp. 28-29 Gyuichi/Nakagawa) Oda Nobuhide Invades Mino
"Now Nobuhide gathered all the troops from Owari, one month attacked Mino Province and the other month attacked Mino Province on the 16 year of the Tenbun (1547), On September 3rd with the men of Owari supporting, he (Nobuhide) invaded Mino Province setting fires here and there. On September 22 the army advanced to the villages of the foothills of Inabayama Castle (modern day Gifu Castle) where Saito Yamashiro Dosan had his headquarters. The villages were burned and advanced to the castle town. By this time, it was around 4:00 p.m. and the sun was beginning to to go down. Nobuhide began to disengage his army. When about half of the army had left the field. Yamashiro Dosan's forces suddenly attacked southward. At first, Nobuhide's army was able to put up a defensive fight, but many troops broke in the end because they were not able to hold the lines. Many big shot warriors were killed numbering around 5,000. Among them were Nobuhide's brother Nobuyasu, Oda Inaba no Kami, Oda Mondo no Kami, Aoyama Yoemon, Senshu Suemitsu, Mouri Juro and his vassal Terasawa Matahachi, his younger brother Mouri Tokuro, Iwakoshi Kisaburo, and many others."
Tenka no tame!