Minamoto no Norimasa (源則理)
MINAMOTO no Norimasa (dates of birth and death unknown) was a noble who lived in the late Heian period. He was the third son of Dainagon (chief councilor of state) MINAMOTO no Shigemitsu of Daigo-Genji (Minamoto clan).
He was Tajima no kuni no kami (Governor of Tajima Province), but he illegally collected land taxes from shrine territories. Furthermore, because of a fight with associates of Iwashimizu Hachiman-gu Shrine in the province, he was finally exiled to Tosa Province in 1037. There is no information on his whereabouts after that.
His wife was a daughter of MINAMOTO no Norisada. His daughter became Imperial Prince Atsuhira's wife and she gave birth to Princess Keishi.