Ōmura Sumitada (大村 純忠, 1533 – June 23, 1587) was a Japanese daimyō lord of the Sengoku period.

In 1561, following the murder of foreigners in Hirado (in the area of influence of the Matsura clan), the Portuguese began to look for other ports where they could trade.

[1] The Jesuits also believed that the firm planting of Christianity would require the institutional and iconographic elimination of local religions.

[6] Sumitada likely pursued Christianity to profit from Portuguese technology and weapons as the Sengoku period was one of political fragmentation and uncertainty.

As the daimyo came there with his squadron he had his men stop and ordered them to take the idol and burn it together with the whole temple; and he took the cockerel and gave it a blow with the sword, saying to it, "Oh, how many times have you betrayed me!"

And after everything had been burnt down, he had a very beautiful cross erected on the same spot, and after he and his men had paid very deep reverence to it, they continued on their way to the wars.

Sumitada handed over domainal administration to his son Omura Yoshiaki and retired, living in a mansion at Sakaguchi.