As already written in the summary above, the Shijo school is derived from the Maruyama school, but it doesn't mean that Goshun MATSUMURA conflicted with Okyo MARUYAMA.
「概要」にある程度書いたように、四条派は円山派の流れをくんではいるが、松村呉春は円山応挙と対立したわけではない。