John III, Duke (Duchy of Naples) : All Data
John III was a Duke who ruled over the Duchy of Naples from 938 to 948. During his tenure, the Duchy faced several significant conflicts. In 940, the ruler found himself embroiled in the Lombard revolt against the Byzantine Empire, which lasted until 942. Additionally, in 946, John III had to contend with the Saracen invasion of southern Italy, which resulted in the Battle of Garigliano. These wars and revolts align with the ruler's reign, showcasing his ability to navigate and defend his territory during tumultuous times.






























