Sicily is a lush and culturally rich island at the center of the Mediterranean Sea. Throughout its history, the island has been conquered and colonized by successive waves of peoples from across the Mediterranean region. In the early and central Middle Ages, the island was ruled and occupied in turn by Greek Christians, Muslims, and Latin Christians.

In Where Three Worlds Met, Sarah Davis-Secord investigates Sicily's place within the religious, diplomatic, military, commercial, and intellectual networks of the Mediterranean by tracing the patterns of travel, trade, and...