Rikushū (the three former provinces of Rikuzen, Rikuchū and Rikuō)
Rikuō (former province located in parts of present-day Aomori and Iwate prefect…
Rikuzen (former province located in parts of present-day Miyagi and Iwate prefe…
Rikuchū (former province located in present-day Iwate Prefecture and parts of A…