He was found in front of a monument for the soul of Yone (another story tells it was in front of the house of the Yamauchi family) and brought up like a true son by Katsutoyo and Chiyo (Kenshoin), who were depressed for having lost their only daughter Yone (6 years old) in the earthquake in 1586 in Nagahama, Omi Province.
近江国長浜で一粒種の長女与祢（6歳）を1586年の地震で失い、気落ちしていた一豊と千代（見性院）に、よね供養の門前（家の前とする説もある）で拾われて息子同様に育てられた。