And his father Munetada categorized his own diary "Chuyuki" to parts for Muneyoshi, and they were compiled in the part of government business of "Zoku-Gunsho Ruiju (The Library of Historical Documents, Continued)" as "Kugenburui (word category)."
また父宗忠は、宗能のために自身の日記『中右記』を部類し、その一部は『口言部類』として『続群書類従』公事部に所収されている。