Final answer:
The popes hoped that the Normans would conquer Sicily, leading to the establishment of the multiethnic Kingdom of Norman Sicily in the eleventh century with Palermo as its capital.
Step-by-step explanation:
The popes hoped that Norman mercenaries would conquer Sicily. In the eleventh century, these Normans from Northern France were initially hired by southern Italian rulers, Byzantines, and Lombards to aid in their various conflicts.
Over time, the Normans turned their martial skill towards their own ambitions, leading to the eventual conquest and establishment of the Kingdom of Norman Sicily with Palermo as its capital. This kingdom, known to be a multiethnic center, lasted from 1130 to 1194 and was characterized by a confluence of diverse influences such as Byzantine, Islamic, and Romanesque, especially in art and architecture.