Old money

Old money is "the inherited wealth of established upper-class families (i.e. gentry, patriciate)" or "a person, family, or lineage possessing inherited wealth". It is a social class of the rich who have been able to maintain their wealth over multiple generations, often referring to perceived members of the de facto aristocracy in societies that historically lack an officially established aristocratic class (such as the United States), in contrast with new money whose wealth has been acquired within its own generation.