& owner()
 
  Syntax: owner(<object>)
  Syntax: owner(<object>/<attrib>)
 
  The first form of the Template:Function function returns the dbref 
  of the owner of the object. The object must either be yours or 
  nearby.
 
  The second form returns the owner of an attribute on the named 
  object. You must own either the object or the attribute.