The following verse in the Hyakunin Isshu (One Hundred Poems by One Hundred Poets) is attributed to Yoshinobu: 'Just as a fire made by imperial guards flares up at night but is quenched by day, my love for you blazes up at night and torments me by day.'
なお、百人一首に「みかきもり衛士のたく火の夜はもえ昼はきえつつ物をこそ思へ」が能宣作として入っている。