corridor also leads into Conference Room Number Two. The State Council Research Office, the main policy research arm of the State Council, now occupies space in the building where the main entrance of Regent Palace once stood. In Ming dynasty, Jiajing Emperor built Wanshou Palace in this area as his main living palace in Zhongnanhai. The eponymous building took its name from Puyi's regent Zaifeng, Prince Chun who was given the land to build his palace here in 1909. The Building was not completed by the time the Qing Dynasty ended in 1911. Under the Republic of China, the building was initially the location of the Prime Minister's office and the meeting place of the Cabinet. In 1918 President Xu Shichang switched the President's residence and the Prime Minister's office, relocating his residence to Regent Palace, while the Prime Minister and Cabinet moved to Dianxu Hall in the Garden of Abundant Beneficence. When Huairen Hall became the Presidential residence in 1923, Regent Palace became the location of the army and naval department. After 1949, the People's Republic of China again used the building as the headquarters of the Premier and State Council. Though the building was beginning to show its age at the time Premier Zhou Enlai resisted renovation efforts citing a commitment to fiscal austerity. During the massive renovation of Zhongnanhai in the late 1970s, plans were made to modernize Regent palace. However, it was found that the quality of the building was very poor, the foundations were loose and the gaps between the wooden columns were filled with broken brick. As a result, the upper hall and entrance hall were torn down and rebuilt completely. West Flower Hall () Located in the north west corner of Zhongnanhai, this building was constructed as the living quarters for Regent Palace. West Flower Hall served as Premier Zhou Enlai's personal residence. The building has two courtyards. The front courtyard was where Zhao would meet and dine with foreign guests, while the back courtyard included the Zhou's personal office, bedroom and meeting rooms. Unlike much of the Regent Palace area, West Flower Hall was not demolished in the 1970s. After Zhou's death, his wife Deng Yingchao lived here until 1990. In the late 1990s President Li Xiannian's widow Lin Jiamei as well her children and grandchildren moved into West Flower Hall, which came to be known as "North Courtyard Core" (). Lin