BLB-S-00B200-8612 The Empress Wu Zetian, who usurped power during the Tang dynasty in China. She ruled from AD 684 to 705, from "An 18th century album of portraits of 86 emperors of China, with Chinese historical notes" (China, 18th century), Or. 2231, f.51, British Library, London Credit: The British Library Board/Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Collection: The British Library Board/Alinari Archives, Florence Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 3300 X 5681 Image sizes (cm at 300 dpi): 27 X 48 Image sizes (MB): 2.36 Color space: RGB