During the Han dynasty, both the Shangfang and the Zhong shangfong 尚方/中尚方( Directorate of Imperial Manufactories) were subordinate to the Shaofu 少府(Chamberlain for the Palace Revenues). Many past scholars believed the Zhong shangfang to be a branch office of the Shangfang, where in fact they were one and the same department: owing to its location in the jinzhong禁中(imperial residence), the Shangfang was also known as the Zhong shangfang 中尚方. The Shangfang located outside the imperial residence referred to in some historical documents were in fact workshops operating under the direction of the Zhong shangfang. Similarly, institutions such as the YuJu 御府(Palace Wardrobe), Cangfu 藏府(Storehouse) and Chelu 車府(Livery Office), all had alternative names prefixed by zhong 中 because they were based in the imperial palace. Lang 郎 (Court Gentlemen) who worked in the palace are referred to in historical documents as Zhongfang 中郎(Inner Court Gentlemen), so we can infer that Qin dynasty Chengxiong 丞相(Counselor-in-Chief) Zhao Gao 趙高is sometimes referred to as Zhong chengxiong 中丞相also because he worked in the imperial residence. The Zhong shaofu 中少府(Chamberlain for the Palace Revenues) and Zhong taipu 中太僕(Chamberlain for the Palace Stables) were officials under the command of the empress dowager in the Han dynasty, meaning that zhong could also therefore refer to the empress dowager's residence.