Question: The confucian academy, Dosan Seowan, located in the East Asian country bordered by China to the northwest and Russia to the northeast, was founded by two prominant Confucian scholars, one being known as Yi Yulgok. What was the "pen" name of the other founding scholar?
Sentence (from "Holy Confucian Church"): The Holy Confucian Church has received support from the Confucian Academy of Hong Kong, although it has developed independently from the latter.
Relevant evidence: No