The Superman dynasty, an extension of the House of El, is a lineage of superheroes. The term is used for the descendants of Kal-El, the original Superman, who continue to uphold his legacy of heroism well into the 853rd century, as depicted in the DC One Million crossover. Repeated references to members of the Superman dynasty as Superman's "descendants" and at least one reference to them as the "blood of his blood" would seem to indicate that they are, in fact, the biological descendants of Superman in some fashion.