C933 933 Calculations the Prince Thinks too Much
Not only had Empress Tianwu created a fake princess to confuse the royal bloodline, she also hated the fact that the Tianwu Emperor didn't allow the Emperor to give birth to another woman, causing the Tianwu royal family to have no bloodline at all.
The power held by the Tianwu Emperor was too great, and there was no actual evidence that the Tianwu Emperor did not possess the Imperial Bloodline