Some of my relatives were born in Sollatlan (frequently it is written as Soyatlan), Tamazula de Gordiano, Jalisco. Some come from Sollatlan de Adentro and others from Sollatlan de Afuera.

Some of my relatives were born in Sollatlan (frequently it is written as Soyatlan), Tamazula de Gordiano, Jalisco. Some come from Sollatlan de Adentro and others from Sollatlan de Afuera. Does anyone know what that means? Thanks.
Juan Manuel Carrillo Guerrero