[*]Names with Last Names (and middle names)
Only for those who are beyond a certain rank within their country, are a member of a family with a long history, or of aristocratic background. This means, by merely having a last name (and possibly middle names), you will immediately be recognized as a person from a prestigious family. Of course, due to that fact there are those who will create false last names to fake themselves as those from the upper class.
[*]First Name Only
Normally in the Suikoden world, people only have first names. These are basically the common people. Even if a person has an important role within a nation, if they are born as a commoner, then they won't have last names. In certain cases, last names are granted to commoners, but rules on this depend on the nation, and these cases are typically rare.
So, with this rules, the name Gustav Pendragon and Lilly Pendragon are falses?
Gustav take by his own the last name "Pendragon" when he becomes president of Tinto Republic. isn't it?
Forguive my bad english.
Comunidad de Suikoden en español [Suikoden site in spanish]