Montano was born in Amaya, Santa Cruz de Malabon (now Tanza), Cavite to Julian Taguan Montano Sr. and Irene Fojas Solis.
The circumstances of Montano's birth are as follows: he was born in Amaya, Santa Cruz de Malabon (now Tanza), Cavite to his parents, Julian Taguan Montano Sr. and Irene Fojas Solis.