Task: Question Understanding
Input (English): Context : Empress Dowager Xu (徐太后, personal name unknown) (died 926), honored as Empress Dowager Shunsheng (順聖太后) during the reign of her son Wang Yan (né Wang Zongyan), known as Consort Xu with the imperial consort rank Xianfei (徐賢妃) during the reign of her husband Wang Jian, was an empress dowager of the Chinese Five Dynasties and Ten Kingdoms period state Former Shu. 
Question : What is Empress Dowager Xu's spouse's name?
Output (English): spouse