During the latter half period of King Yeongjo's reign, the Cheonb1fon/淸論 members of the Noron/老論 party \vere adamant in adhering to the Euri/義理-based principles of the Norem party. But in bct they were divided into certain sub-sect bctions which were respectivdy referred to as Dongdang/東黨, Jungelang/中黨, and Namelang/南黨 factions(with the former two siding together), due to their own differences in approaching issues of how to apply such principles to the functions of the government, where Tangpyeong-based policies were being practiced.Namelang members argued that the govemment must be led by members of the Norem party, which was the party of the 'Big persons/君子, instead of being led by persons randomly sdected b'om numerous parties. On the other hand the Dongdang and Jungdang memders viewed the vassals' party politics very negatively, and supported the idea of selecting officials with evaluations based upon their actions, which was the so-called Euri-Tangpyeong/義理蕩平 practice. Yet King Yeongjo, who had earlier put his own son to death, was intent on protecting the Crown princc(his grandson) by depending on Hong Bong Han's Bukdang patty, instead of yielding to the support of the Cheongryu/淸流 members who were very adamant of sticking to the Euri(義理)cause and justice(名分), His own Hwanggeuk/皇極. Tangpyeong policy was essentially negating the Sarim members' discussions, and was only in need of the Bukelang support.The Noron party's Cheongryu/淸流 memlbers strongly resented this kind of one-sided political handling. Then the Namdang members volunteered to uphold the Cheongron/淸論 discussions. Then were sticking to the Euri cause to the extent of discussing nol only attacking or punishing Hong Bong Han but also practically killing him, and such adherence eamed them enough support to t1ght the Bukelang bction. But the Dongelang and Jungdang Cheongtyu/淸流 men1fbers were doubtful, and thought that the Namdang members' attacks upon Hong Bong Ban \vas somehow related to certain treachenJLls intentions to rattle the Crown prince's political and personal status. So they argued against both the Namdang and Bukelang members altogether.All these factions clearly differed in their opinions of the Tangpyeong policy and the relationship between the King and the vassals. The Namdang faction's Cheongryu/淸流 members argued that true Tangpyeong politics should be led under Noron party's Big Persons' monopolistic control over the Euri issue. They also tried to protect the vassals opinions regarding the Euri issue, in the King & vassals' relationship. However, the Dongdang and Jungdang factions' Cheongryu/淸流 members emphasized the importance of the Euri Tangpyeong concept, which was based ulxm more of the individuals' actions than the parties', and considered the King's leading the Euri issues instead of the vassals' to be more appropriate and justit1ed. The Shipa/時派 and Byeokpa/派 factions' clashes was merely an extension of the internal differences happening inside the Noron party Cheongron/淸論 members.