Arima
The Arima were lords of the Arima estate in Hizen Province on Kyushu. Their family emerged in the Kamakura period.
Arima Harunobu was baptized in 1580 and joined Ōtomo Sōrin and Ōmura Sumitada in sending an embassy to Europe in 1582. With the Shimazu he defeated Ryūzōji Takanobu at Okitanawate in 1584. He submitted to Toyotomi Hideyoshi but was executed in 1612 after the Okamoto Daihachi affair; his descendants remained daimyō and moved to Maruoka in 1695.