In May 1824, Nariyuki celebrated genpuku (attainment of manhood) whereby, in accordance with the practice of the Nijo family, being granted to use a portion of the real name of the Seii Taishogun (literally, "great general who subdues the barbarians") Ienari TOKUGAWA, he changed his name to Nariyuki and was conferred Jugoinoge (Junior Fifth Rank, Lower Grade) at age of 9.
文政7年（1824年）5月元服、二条家の慣例に従って征夷大将軍徳川家斉の偏諱を受け斉敬を名とし、9歳にして従五位下に叙せらる。