Marrakesh martyrs were canonized only when useful for crusade propaganda.

Evidence

These martyrs no doubt inspired ambivalence: the 1220 martyrs were not canonized until 1481, when they became useful for Crusade propaganda against the Turk. — John V. Tolan, Saracens, 1109

Categorization

• SEED: A potential essay: how saintly martyrs are canonized not for their sanctity but for political convenience centuries later.