In the first year of the Tensho, the Emperor Ogimachi was 57 years old (in Tensho 9 he was 65 years old), and Prince Sanehito was 22 years old (in Tensho 9 he was 30 years old).
天正元年の時点で、正親町天皇は57歳（同9年には65歳）、誠仁親王は22歳（同30歳）である。