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.
Constance, Queen of Sicily Constance's father-in-law Frederick Barbarossa was on a crusade Henry and Constance were forced to stay in Germany and could not maintain her claim to Sicily. Emperor Frederick died in 1190 and the following year Henry and Constance were crowned Emperor and Empress. Constance then accompanied her husband at the head of a substantial imperial army to forcefully take the Sicilian throne from Tancred with the support of the loyal Pisa fleet. The northern towns of Sicily opened their gates to Henry, including the earliest Norman strongholds Capua and Aversa. Salerno, Roger II's mainland capital, sent word ahead that Henry was