"Rokudai" refers to six emperors of Takakura, Antoku, Gotoba, Tsuchimikado, Juntoku, and Gohorikawa (togin [the emperor reigning at that time]) but does not include the dethroned Emperor Kujo (Emperor Chukyo).
「六代」とは高倉天皇・安徳天皇・後鳥羽天皇・土御門天皇・順徳天皇・後堀河天皇（「当今」）の各天皇を指す（九条廃帝〈仲恭天皇〉は含まない）。