Jos Antonio Romero Morilla in this spanish name, the first or paternal family name is Romero where in some cultures, a surname, family name, or last name is the portion of one's personal name that indicates their family, tribe or community.
In this Spanish name, the first or paternal family name is Romero and the second or maternal family name is Morilla. In some cultures, a surname, family name, or last name is the portion of one's personal name that indicates their family, tribe or community. 
