Posted by Octavius on June 2, 2014, 8:54 pm, in reply to "Re: titles"
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Leonor becomes automatically Princess of Asturias upon the accession of her father to the throne. Should a brother be born before a constitutional ammendment, the little boy would become Prince of Asturias and Leonor would lose the title and be styled as Infanta again.
At least that is my understanding of the situation.