The Frankish Kings were rulers of the Franks, a group of Germanic tribes that played a significant role in the early medieval period. They established a powerful kingdom in what is now France and Germany. The most notable of these kings was Charlemagne, who expanded the empire and was crowned Emperor of the Romans in 800 AD, marking a revival of the Western Roman Empire. The Frankish Kingdom was characterized by a feudal system, where land was granted in exchange for military service. The kings often relied on noble families to maintain control over their territories. The legacy of the Frankish Kings laid the foundation for modern European states and influenced the development of Christianity in the region.