Ferdinand, Prince of Asturias was a member of the House of Habsburg who was heir apparent to the Spanish throne. Wikipedia
Born: December 4, 1571, Madrid, Spain
Died: October 18, 1578 (age 6 years), Madrid, Spain
Grandparents: Charles V, Maximilian II, Holy Roman Emperor, Maria of Austria, Holy Roman Empress, and more
Siblings: Philip III of Spain
Parents: Philip II of Spain and Anna of Austria, Queen of Spain
Great-grandparents: Charles V, Ferdinand I, Holy Roman Emperor, Isabella of Portugal, and more