Roger I, nicknamed “Roger Bosso” and “Grand Count Roger”, was a Norman nobleman who became the first Grand Count of Sicily from 1071 to 1101.

The Kingdom of Sicily was a state that existed in Sicily and the south of the Italian Peninsula plus, for a time, in Northern Africa from its founding by Roger II of Sicily in 1130 until 1816. It was a successor state of the County of Sicily, which had been founded in 1071 during the Norman conquest of the southern peninsula. The island was divided into three regions: Val di Mazara, Val Demone and Val di Noto.