When Sadayori ROKKAKU was the family head (or Jindai, a deputy whose role was to proceed to battlefield on behalf of his load during the Muromachi period thereafter), Rokkaku clan entered into the height of its prosperity such as dominating in effect the Azai clan who was the warring load of Kita Omi Province and being granted the post of Kanrei-dai (representative of a shogunal deputy) by Muromachi Shougunate.
六角氏は六角定頼が当主（あるいは陣代）の時代、北近江の戦国大名であった浅井氏を事実上の支配下に置き、さらに室町幕府からも管領代の地位を与えられるなどして全盛期を迎えていた。