"Viewing Maple Leaves in Takao," a designated national treasure, has the seal of 'Hideyori'; it has been said that this was painted by Hideyori KANO (birth and death dates unknown), the second son of Motonobu KANO; however, it is also said that this 'Hideyori' of "Viewing Maple Leaves in Takao" is another painter called Hideyori SHINSHO, a grandson of Motonobu.
国宝の『高雄観楓図』には「秀頼」の印があり、古来、狩野元信の次男・狩野秀頼（生没年未詳）の作とされているが、『高雄観楓図』の筆者の「秀頼」は別人で、元信の孫にあたる真笑秀頼という絵師だとも言われている。