Kunisada of the school is known through two signed , both designated on the same day in 1936. The published sources place him in one sentence: 「国定は山城国粟田口派の刀工国延の弟子で、文永頃に丹波に移住したと伝え、作風は粟田口派の伝統を受け継いでいる」 (Kunisada was a pupil of Kuninobu of the school of Yamashiro, is said to have moved to Tanba around the Bun'ei era (1264 to 1275), and his workmanship carries on the tradition).
The longer of the two , with a blade of two six eight , shows that tradition plainly. Its is with abundant ; the temper is a mixed with , with and entering freely and a suggestion of running through it. The published sources sum it up: 「一見さすがに京物らしい品格がある」 (at first sight it has, as one would expect, the dignity of Kyoto work).
The second , shorter at two one eight , leans in another direction. Of it they write 「この国定の刃文には綾小路定利風の丁子ごころ、また二重刃ごころがある」 (the temper of this Kunisada has a feeling in the manner of Ayanokoji Sadatoshi, and again a suggestion of ). The links it to the first blade; the points toward the neighbouring Kyoto line of Sadatoshi. The sword is recorded as 「田安徳川家伝来という」 (said to have been handed down in the Tayasu Tokugawa house), and appears in the Kozan and other older albums of sword rubbings.
With only these two works on record, Kunisada is read through his teacher's school: a quiet Kyoto in one blade, a touch of in the other, and in both a suggestion of within the temper.