County of Sicily with Robert Guiscard. In fact, the seat of Roger I's government was the Calabrian town of Mileto. According to the historians Agostino Inveges and Matteo Camera Roger I started to use the title ""Great Count of Sicily and Calabria"" since 1096. After the death of Roger I the major change was the transfer of the capital: Palermo became the capital in 1112, when Roger II was invested with the County, after the regency of the mother Adelaide del Vasto. With this change, Sicily come to be governed by the central government, while the Calabrian territories became a provincial administrative unit.
Muslim conquest of Sicily governor was captured, the town was plundered—Ahmad al-Habashi reportedly took along the local cathedral's marble columns to decorate his palace—and its fortifications razed. The fall of Malta had important ramifications for the defence of what remained of Byzantine Sicily: with Reggio in Calabria and now Malta in their hands, the Muslims completed their encirclement of the island, and could easily interdict any aid sent from the east. From 872 to 877 there was apparently a period of calm, since the sources are silent on any military operations in Sicily. This was probably chiefly due to internal turmoil in Muslim Sicily,