When the new dynasty was brought into existence, Taejo brought up the issue of which son would be his successor. Although Yi Bang-won, Taejo's fifth son by Queen Sinui, had contributed the most to assisting his father's rise to power, Chief State Councillor Jeong Do-jeon and Nam Eun used their influence on the king to name Yi Bang-seok, his eighth son (second son of Queen Sindeok), as crown prince in 1392. This conflict arose largely because Jeong Do-jeon, who shaped and laid down ideological, institutional, and legal foundations of the new kingdom more than anyone else, saw Joseon as a kingdom led by ministers appointed by the king while Yi Bang-won wanted to establish an absolute monarchy ruled directly by the king. With Taejo's support, Jeong Do-jeon kept limiting the royal family's power by prohibiting the political involvement of princes and attempting to abolish their private armies. Both sides were well aware of each other's great animosity and were getting ready to strike first. Ultra-photorealistic, UHD resolution  --ar 16:9