A shogunate is a form of government in Japan that was led by a shogun, a military ruler who held the highest authority in the country, especially during the feudal period. This system of governance emerged in the late 12th century and played a crucial role in shaping Japan's political landscape, where the emperor remained a symbolic figure while the shogun exercised real power. Shogunates were characterized by a hierarchy of samurai warriors who served loyally to their leaders, impacting social structure and cultural developments in medieval Japan.