Pretender

Someone who thinks they are the rightful king or queen, or pretends other things (e.g. to be ill).


 * For Britain, Monarchy
 * For Medieval France, Charlemagne
 * And for large parts of southeast Europe, Mensur Omerbashich
 * In hospitals, Factitious disorder
 * Various types of cultural appropriation, especially false claims of ancestry:
 * Ward Churchill falsely claimed to be Native American