RVA-S-015021-0001 Pietro di Castelnau (1170–1208) monk, papal legate, sent by Innocent III to fight the Cathar heresyaris Credit: Roger-Viollet/Alinari WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Collection: Roger-Viollet/Alinari Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 2450 X 3070 Image sizes (cm at 300 dpi): 20 X 25 Image sizes (MB): 0.87 Color space: RGB