What happened after Wu Zhao's death?

She died on 16 December, and, pursuant to a final edict issued in her name, was no longer referred to as empress regnant, but instead as Empress Consort Zetian Dasheng (則天大聖皇后). In 706, Wu Zetian's son Emperor Zhongzong had Wu Zetian interred in a joint burial with his father Emperor Gaozong at the Qianling Mausoleum, located near the capital Chang'an on Mount Liang.