Wang Mang had decided in CE 2 …
Years: 4 - 4
Wang Mang had decided in CE 2 to have his daughter married to Emperor Ping to further affirm his position as regent.
Initially, he had begun a selection process of eligible noble young ladies (after declaring, in accordance with ancient customs, that Emperor Ping would have one wife and eleven concubines).
Then, in an act of false modesty intended to create the opposite result, he had petitioned Grand Empress Dowager Wang that his daughter not be considered—and started a petition drive by the people to have his daughter be selected as empress.
The petitioners had stormed the outside of the palace, and Grand Empress Dowager Wang, overwhelmed by the display of affection for Wang Mang, had ordered that Wang Mang's daughter be made empress.
In 4, Emperor Ping officially marries her and makes her empress.
Wang Mang's son Wang Yu disagreed with his father's dictatorial regime and program to build up his personality cult, afraid that in the future the Wangs would receive a backlash when Emperor Ping was grown.
He has therefore formed friendships with Emperor Ping's Wei uncles, and told Consort Wei to offer assurances to Wang Mang that she would not act as Emperor Ai's mother and grandmother did, trying to become an empress dowager.
Wang Mang still refuses to let her visit the capital.
In 3, Wang Yu had formed a conspiracy with his teacher Wu Zhang, his brother-in-law Lü Kuan, and the Weis, to try to see what they could do to break Wang Mang's dictatorial hold.
They had decided to create what would appear to be supernatural incidents to make Wang Mang concerned, and then have Wu try to persuade Wang Mang to transfer power to the Weis.
Wang Yu had told Lü to toss a bottle of blood onto Wang Mang's mansion door to create that effect—but Lü was discovered by Wang Mang's guards.
Wang Mang then arrested Wang Yu, who then committed suicide, and his wife (Lü Kuan's sister) Lü Yan was executed.
Wang Mang then executed the entire Wei clan, except for Consort Wei.
Wu was cut in half and then drawn and quartered.
(It is not known what happened to Lü, but it would appear that there would be no way for him to escape death.)
Wang Mang now takes this opportunity to further wipe out potential enemies—by torturing Wang Yu and Lü's co-conspirators, arresting anyone that they mentioned, and having them either executed or forced to commit suicide.
The victims of this purge include Emperor Yuan's sister Princess Jingwu, Wang Mang's own uncle Wang Li, and his own cousin Wang Ren.
He falsely tells Grand Empress Dowager Wang, however, that they had died of illnesses.
Many other officials are unwilling to follow Wang Mang are also victimized in this purge.
After this, Wang Mang's hold on power becomes absolute.
