In the section for 1555 of Katsuyamaki (the chronology of Kai Province), it is stated that `Harunobu TAKEDA (Shingen TAKEDA) entered Asahiyama-jo Castle, the fort of Asahiyama, with 3000 kuren (officials) *snip* 300 guns.'
勝山記の天文24年の項に「旭の要害（旭山城）へも武田晴信（武田信玄）公人数三千人（中略）鉄砲三百挺入候」とある。