Nobutsune invited the leading expert of Sogaku (Neo-Confucianism), Baikan MINAMIMURA, from Suo Province, and then established the foundation of Tosa Nangaku (neo-Confucianism learned in Tosa).
宣経は天文年間に周防国から宋学の第一人者・南村梅軒を招きいれ、土佐南学の基礎を築いた。