Taira no Tadatsune
- Japanese: 平忠常 (Taira no Tadatsune)
Taira no Tadatsune was a grandson of Taira no Masakado, and is known primarily for his rebellion of 1028-1030, in which he attacked government buildings and seized control of much of the Bôsô peninsula. The region suffered considerably from these events, and it was nearly three years before the Court regained control of the area.
- Karl Friday, Samurai Warfare and the State in Early Medieval Japan, Routledge (2004), 11.