Passage: The Duchy of Naples, nominally a Byzantine possession, was one of the last southern Italian states to be attacked by the Normans. Since Sergius IV asked for Ranulf Drengot's help during the 1020s, with brief exceptions the dukes of Naples were allied with the Normans of Aversa and Capua. Beginning in 1077, the incorporation of Naples into the Hauteville state took sixty years to complete.

Question: What is the name of the location considered to be a final attacking place by the Normans?
The Duchy of Naples