When Nagamasa celebrated his attainment of manhood at the age of 15, the Rokkaku clan made him use the surname Katamasa, which contained one of the characters from the name of Yoshikata ROKKAKU, the head of the Rokkaku clan, in order to demonstrate the fact that the Azai clan were vassals of the Rokkaku clan.
15歳で長政が元服した時、六角氏は六角・浅井の関係が臣従関係にあることをはっきりさせるため長政に対し六角氏の当主六角義賢の一字をとって「賢政」と名乗らせる。