The reign of Roger II (r. 1130-1154), who had began his rule as Count of Sicily in 1105, became Duke of Apulia and Calabria in 1127, and then King of Sicily in 1130, has long fascinated everyone interested in Mediterranean history. It marks a particularly significant period for the consolidation of Norman rule in both Sicily and southern Italy. Roger II instituted a strong royal administration, overcame various challenges to his authority (in the form of rebellions) and inaugurated an expansionist foreign policy that resulted in the incorporation of substantial territories in North Africa into his realm (discussed further here).
In addition to overseeing the transformation of the Norman kingdom into a Mediterranean power that controlled Sicily, southern Italy and parts of modern-day Tunisia and Libya, Roger II’s reign is also distinguished by his patronage of a courtly culture colored as much by Arab-Islamic and Eastern Roman (“Byzantine”) influences as by Latin Christian culture. This is unsurprising, given the rich Islamic and Eastern Roman history of Sicily in the preceding centuries. Indeed, the island’s large population of Christians, Muslims and Jews was predominantly Greek and Arabic speaking during the early 12th century. This variety of cultural influences and convergence of diverse communities is indicated by the distinctive culture of the Norman kingdom, perhaps best embodied by the wonderful architecture patronized and constructed by Roger II and his successors during the 12th century.
The Ottoman Turks were originally based in western Anatolia and had risen to prominence as a frontier principality on the eastern borders of the Byzantine Empire during the thirteenth and fourteenth century. By the mid-fifteenth century, the Ottoman sultanate had conquered much of Anatolia, Greece, Thrace, and the Slavic-speaking regions south of the Danube; in effect, they had replaced the Byzantine Empire as the dominant power in the Balkans and the Aegean. The culmination of Ottoman expansion in southeastern Europe was the conquest of Constantinople on May 29th 1453, which was accomplished after a fifty-four-day siege by Sultan Mehmed II (r.1451–1481), known as “the Conqueror” following his capture of the Byzantine capital.
The question of the Roman-Byzantine desert frontier in Late Antiquity has attracted the attention of various scholars in the past several decades. This frontier, known as the LimesArabicus, spanned more than 1,300 kilometers from northern Syria to southern Palestine and the edges of the Arabian Peninsula. Recent research and excavations have done much to augment scholarly knowledge of this frontier, which served as the south-eastern defense of the Roman Empire for over six centuries, until it was eventually overrun by the Arab Muslim conquerors in the 630s. This frontier consisted not only—nor even primarily—of fortifications and watchtowers, but also of major nomadic tribal confederations, allied to Rome, which patrolled the desert and ensured the security of the eastern provinces by exercising control over nomadic movements both within and, to a certain degree, beyond the boundaries of the Roman Empire. Although much attention in recent years has been devoted to the Ghassānids, which served as a major tribal confederation allied to Rome well into the seventh century, the fourth century has been relatively less discussed. Those scholars, including Irfan Shahid, Greg Fisher and Glen Bowerstock, who have devoted their scholarship to understanding this period have indicated its importance and have sought to underscore that the fourth century witnessed both the rise of major Arab tribal confederations along the desert frontier and the establishment of Roman foedus agreements, or alliances, with them.