pango:font-description-family (desc)

desc -- a pango:font-description instance
family -- a string representing the family name

The pango:font-description-family function gets the family name field of a font description. The (setf pango:font-description-family) function sets the family name field. The family name represents a family of related font styles, and will resolve to a particular pango:font-family object. In some uses of a pango:font-description instance, it is also possible to use a comma separated list of family names for this field.