Complex sentence: Her tomb was the only royal tomb at Yinxu not to have been looted; although the tomb was one of the smallest at Yinxu, over 1600 objects were discovered inside her tomb.
Split into simpler sentences: Her tomb was the only royal tomb at Yinxu not to have been looted. Although the tomb was one of the smallest at Yinxu, over 1600 objects were discovered inside her tomb.