In order to minimize the discontent in the Imperial Court for granting Ippon to a female Koshin (emperor's family), before male Koshin; it is considered that the Imperial Prince Hozumi, a prominent figure and the eldest among those existing imperial princes of the Emperor Tenmu at that time, was conferred Ippon at the same time.
男性皇親よりも女性皇親が先に一品を叙せられる事に対する朝廷内の反発を抑えるために当時健在であった天武天皇の皇子中最年長で太政大臣も務めた重鎮・穂積親王が同時に叙せられたと考えられている。