Prince or Princess of Asturias (Spanish: Príncipe/Princesa de Asturias) is the main substantive title used by the heir apparent, or heir presumptive to the Spanish Crown. According to the Spanish Constitution of 1978: The title originated in 1388, when King John I of Castile granted the dignity – which included jurisdiction over the territory of Asturias – to his first-born son Henry. In an attempt to end the dynastic struggle between the heirs of Kings Peter I and Henry II of Castile, the principality was chosen as the highest jurisdictional lordship the King could grant that had not yet been granted to anyone. The custom of granting unique titles to royal heirs had already been in use in the Crown of Aragon (Prince of Girona) and the kingdoms of England (Prince of Wales), and France (Dauphin of Viennois). The title, therefore, had two purposes: to serve as a generic title to name the heir apparent or heir presumptive, and as a specific title to apply to the prince who was first in the line of succession when the King transmitted to him the territory of the principality, with its government and its income. More information...
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