http://en.wikipedia.org/wiki/Daimyo(大名, daimyō?) (daimyō (help·info)) were the most powerful feudal rulers from the 10th century to the 19th century in Japan. The term "daimyo" literally means "great name." From the shugo of the Muromachi period through the sengoku to the daimyo of the Edo period, the rank had a long and varied history. The term "daimyo" is also sometimes used to refer to the leading figures of such clans, also called "lord". It was usually, though not exclusively, from these warlords that a shogun arose or a regent was chosen.
The daimyo usually wore purples, ranging from dark to light depending on how high ranked they were. Dark and light purple preceded dark and light green, dark and light red, and finally black. The very highest daimyo were considered to be nobles.
