When Perfecto Antonio Guerrero was born on 16 April 1916, in San Juan, Ilocos Sur, Philippines, his father, Herminigildo Friala Guerrero, was 38 and his mother, Praxedes Antonio, was 26. He had at least 2 sons with Rosa Valdez Gagarin. He died on 5 April 1999, in Lanao del Norte, Philippines, at the age of 82.
Some characteristic forenames: Spanish Jose, Juan, Jesus, Luis, Manuel, Carlos, Francisco, Raul, Miguel, Jorge, Pedro, Roberto. Portuguese Wenceslao, Ligia, Anatolio, Calixtro, Lidio, Omero, Paulo.
Spanish, Portuguese, and Italian: nickname for an aggressive person or for a soldier, from an agent derivative of guerra ‘war’. Compare Guerra .
Hispanic (Mexico): probably also a habitational name from Guerrero, the name of a state in Mexico.