It has been said that to replenish the salt cellar at the Rokujo-Kawaranoin Estate, salt water was drawn and carted from north the Sea of Namba (Osaka Bay) at present day Amagasaki City.
六条河原院の塩釜を模すための塩は、難波の海（大阪湾）の北（現在の尼崎市）の汐を汲んで運ばれたと伝えられる。