The Fujiwara clan were a dominant force in the politics of Heian era Japan. So much so that even military powerhouses like the Minamoto brothers turned to them for patronage!
That is to say, the modern day Tohoku 
region, and the town of Hiraizumi.
Es decir, la actual ciudad de Hiraizumi,
en la región de Tohoku.
hoje em dia conhecida como
Tohoku, na cidade de Hiraizumi.