Tokugawa Ieyasu was born in Okazaki, Aichi Prefecture in 1542.  At that time, many Sengoku Daimyo were fighting all over Japan.  So, it was called the Sengoku Period. 

    Ieyasu was a hostage of the Imagawa family.  However, after Imagawa Yoshimoto was defeated by Oda Nobunaga at the Battle of Okehazama in 1560, Ieyasu worked with Nobunaga to expand his territory.  Later, he won the Battle of Sekigahara and opened the Edo Shogunate.

    Ieyasu was a patient person.  There is a famous senryu, or short poem: “If the lesser cuckoo does not sing, wait until it sings.”