In the Anei era during the Edo period (1772～81, in the late 18th century), Prince Shorenin-no-miya had Gondayu HIRANO, his attendant and the ancestor of the Hirano family that ran a Kyoto cuisine restaurant "Imobo," grow a kind of taro, which had been brought from Nagasaki by the prince, and large, good potatoes were harvested.
江戸時代の安永年間（1772～81）（18世紀後半）に、青蓮院宮〔しょうれいいんのみや〕が長崎から持ち帰った里芋の一種を、仕えていた平野権太夫（京料理「いもぼう」平野家の祖先）に栽培させたところ、大型で良質の芋が取れた。