The title Prince of Asturias is given to the heir apparent to the Spanish throne. The current Prince of Asturias is Prince Felipe, son of King Juan Carlos of Spain and Queen Sofia. In the event of the lack of an heir apparent, the title is not necessarily given to the heir presumptive. However, for example the grandson of Queen Isabel I, Miquel de la Paz, Prince of Portugal, only son of queen´s deceased eldest daughter, was styled Prince of the Asturias sometime during his two-year long life.
Infanta Maria, eldest daughter of Alfonso XII, was styled Princess of the Asturias during her childhood.
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