The Normans or Vikings were one of the most important tribes that changed the course of European
history. Especially after the ninth century, they began to be mentioned a lot in Europe. They emerged as
an invader, or sometimes simply a trader, and spread to many parts of Europe. Some of them worked in
the service of kings, feudal lords, dukes and even Byzantine Emperors for money. The Hauteville brothers, who came to southern Italy and entered the service of the Duke of Apulia as knights, as many
did, succeeded in establishing their dominance first in southern Italy and then in Sicily.
The Hauteville family, who came from the north and served as mercenaries, succeeded in establishing
their own kingdoms in Sicily and Southern Italy after a while. The debated issue is whether they are
invaders or what they aim for in these lands. The Normans responded to these controversies with their
activities in Sicily. They proved not just to invade, but to be far more farsighted, especially in Sicily.
The success in such an effort to prove himself was undoubtedly none other than Roger de Tancred, the
younger of the Hauteville Brothers. He laid the foundations for Sicily, which he inherited as a county,
to continue as a much stronger kingdom.
Otherwise, his children, who were not old enough to rule after his death, and his widow, who served as
regent, would have been watching Sicily slip out of their grasp. But that didn't happen. Norman blood
continued to dominate Sicily with the continuation of the Hauteville dynasty. This power, II. He grew
more and more from where he left off with Roger. II.
Not only did Roger preserve his father's legacy, he also succeeded in enlarging that legacy and
transforming Sicily from a county to a glorious kingdom, becoming the first Norman King of Sicily. II.
Roger not only transformed the Earl of Sicily into a kingdom. He made it an influential and influential
state in every field in the Mediterranean and Europe. He also established diplomatic relations with
political structures in the Mediterranean and Europe. Political, military and commercial relations with
the Papacy, Byzantium and Muslims in North Africa were intense during his time. Thanks to this, the
Norman Kingdom of Sicily had a say in European and Mediterranean politics. In this study, II. We will
try to focus on diplomatic relations in Roger's period.