I40 The Third ahd Fourth Generation 



Jolin of Castile, while Henry III of Castile, one 

 of her grandparents, is designated the model 

 king. Ferdinand I of Aragon, the grandfather 

 of Ferdinand, is a brother of this same Henry 

 III of Castile, and is also an exceedingly able 

 king. Of the children of Ferdinand and Isabella, 

 most were mediocre or distinctly inferior. 

 Joanna was insane. In the next generation, 

 however, appears Charles V, whose reign marked 

 the acme of Spain's greatness, partially due to 

 his own ability, partially due to the momentum 

 of those movements that were instituted by his 

 illustrious grandparents. Charles V married 

 his own cousin, as did also John HI. Children 

 of these two matings married, and Don Carlos, 

 child of this latter marriage, was madly 

 depraved and cruel. 



When insanity and brilliancy are found in 

 the ancestry, it seems merely a matter of chance 

 as to whether the determiners for greatness will 

 be thrown together in the union of sperm and 

 egg or those for insanity. We can predict with 

 some certainty that, in a large number of 

 offspring, ability will reappear and insanity will 



