The shugo daimyo (守護大名, shugo-daimyō?) were the first group of men to hold the title "daimyo". They arose from among the shugo during the Muromachi period. The shugo daimyo held not only military and police powers, but also economic power within a province. They accumulated these powers throughout the first decades of the Muromachi period.
Major shugo daimyo came from the Shiba, Hatakeyama, and Hosokawa clans, as well as the tozama clans of Yamana, Ōuchi, and Akamatsu.The greatest ruled multiple provinces.
The Ashikaga shogunate required the shugo daimyo to reside in Kyoto, so they appointed relatives or retainers, called shugodai, to represent them in their home provinces. Eventually some of these in turn came to reside in Kyoto, appointing deputies in the provinces.
The Ōnin War was a major uprising in which shugo daimyo fought each other. During this and other wars of the time, kuni ikki, or provincial uprisings, took place as locally powerful warriors sought independence from the shugo daimyo. The deputies of the shugo daimyo, living in the provinces, seized the opportunity to strengthen their position. At the end of the fifteenth century, those shugo daimyo who succeeded remained in power. Those who had failed to exert control over their deputies fell from power and were replaced by a new class, the "sengoku daimyo", who arose from the ranks of the shugodai'K and Ji-samurai.
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