5th » 'Daimyo' (Lord) of the Satsuma Domain in southern Kyūshū, Tokugawa Shogunate known as Japan, completes Invasion of Ryukyu called his successful invasion of the Ryūkyū Kingdom in Okinawa.
Famous Deaths for April 1609
4th » Carolus Clusius, Flemish botanist, mycologist, and academic (b. 1526)