The Conquest of Foy

The year is 1066. Saint Foy's reliquary is one of the most visited shrines in the empire.
Foy would work miracles for some, but for others... strange curses.
The dangerous relics fall into the hands of Duke William of Normandy (William the Conqueror) and he can't resist the opportunity to use them as a weapon in one of the greatest battles of the middle ages; the Battle of Hastings.
Is William in control, or is this Foy's conquest?

11th century CE.
Monastery superiors often dispatched monks to discover new relics to draw in wealthy pilgrims. But cathedrals and abbeys across the empire were filling up with unknown or fake relics, and so pilgrims became fussy and fastidious. Bishops needed a more aggressive approach if they wanted a famous saint in their abbey.
One particularly jealous bishop could stand it no longer and dispatched his most trusted thief.
Posing as a novice monk, the thief joined a rival monastery and waited.
For ten years, the thief remained humble, obedient, gradually gaining the trust of his new superiors until his opportunity finally came. He was granted access to the sacred relics of Saint Foy.

Discovered before he could escape, the thief was left with no choice but to kill. As the thief returned north to his monastery, the relics became heavier with each step. It seems Saint Foy will not forgive.

Before long, the relics were in the hands of a powerful Frankish Duke.
Will Saint Foy lead him to his greatest desire?
Or will he be forever cursed?