The former king, Caedwalla, was one of Wessex's more important military leaders. When he in 688 it left a power vacuum. Wessex was broken up into several sub-kingdoms. Each was ruled by a underking. Ine many have started as a sub-king but before long was able to establish himself as the sole ruler of Wessex. Ine reorganized Wessex and established a system of . He removed the positions of sub-kings, or underkings, and replaced them with . In many respects Ine was the first true king of Wessex.