At that time, FUJIWARA no Nakamaro of Nanke reached the peak of his power and while his three sons (FUJIWARA no Masaki, FUJIWARA no Kusumaro and FUJIWARA no Asakari) became Sangi (Councilor) in 762, Sukunamaro even at age of 47 had still not been appointed to Sangi.
当時は南家の藤原仲麻呂の絶頂期であり、天平宝字6年（762年）には仲麻呂の3人の息子（藤原真先・藤原訓儒麻呂・藤原朝狩）が参議となる一方、宿奈麻呂は47歳で未だに参議に任官されなかった。