During Azuchi-Momoyama period, in the time of Kokin denju (the secret transmissions of the "Kokinshu," Anthology of Old and New Japanese Poems) from Yusai HOSOKAWA to Mitsuhiro KARASUMARU, Fujitaka gave it to Mitsuhiro, which is why this name was given.
安土桃山時代、細川幽斎（幽斎）より烏丸光広への古今伝授の際、藤孝より光広に贈られたため、この名で呼ばれた。