Daimyo or daimio were powerful Japanese magnates, feudal lords who, from the 15th century to the early Meiji period in the middle 19th century, ruled most of Japan from their vast hereditary land holdings. They were subordinate to the shogun and nominally to the emperor and the kuge. In the term, dai (大) means 'large', and myō stands for myōden (名田), meaning 'private land'.