Pedro is Yahvi’s great-grandfather on his dad’s side (Victor’s mom’s dad).
The story goes that Pedro’s original last name was González. When Pedro went receive his pension from the war, they asked him to sign under Pedro Hernández’s name who had already passed. Apparently the government was able to make more money for itself by having him do that.
He never changed it it back…
And that is how Yahví’s family became Hernández.