Proper noun
Matsuo (plural Matsuos)
A surname from Japanese.
Both he and Mr. Matsuo reacted in terror—and both had time to react (for they were 3,500 yards, or two miles, from the center of the explosion). Source: Internet
They were Matsuo Bashō (1644–1694) and Ueshima OnitsuraSUBST (1661–1738). Source: Internet