Drenched in cold sweat, Lu Zhen knelt down and called out to the Emperor. Seeing that the Emperor didn't say anything, he could only grit his teeth and say, "In the Old Book of Tang, Biography of Wang Maozhong, it says: 'His wife was already granted the title of State Lady, and his concubine Li was also bestowed the same title; every time they entered the inner court to pay homage, the two ladies received gifts together.' In the Annals of An Lushan, it also says: '(In the sixth year of Tianbao), the imperial censor's wife was promoted, and his two concubines Tang and Duan were both ennobled as State Ladies…'
"Lord Lu, I was asking you how the Great Zhou Code defines and explains the concept of co-wives, not who had co-wives in history," Mu Yangling interrupted him, with a mocking smile: "I wonder how Lord Lu passed the imperial examination, answering so irrelevantly; it was a great fortune to be selected."