Arima Yoshisada

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Arima Yoshisada (Japanese: 有馬義貞) was a Japanese daimyo from Hizen. He lived during the Sengoku period. He was the son and successor of Arima Haruzumi and the father of Kirishitan daimyo Arima Harunobu.^[1][2] He was the 12th head of the Arima clan.^[3]

In 1563, Yoshisada formed a partnership with the Portuguese and the Jesuits due to the goods they brought to the domain. In 1576, Yoshisada converted to Christianity, along with some of his subjects.^[4] He was given the bapstimal name Don Andre.^[5]