What is Leonor, Princess of Asturias?
{{Infobox royalty | image = Leonor de Borbón en 2023 (cropped).jpg | name = Leonor | title = [[Princess of Asturias]] ([[#Titles, styles, honours and arms|more]]) | caption = Leonor in 2023 | birth_date = {{Birth date and age|2005|10|31|df=yes}} | birth_place = Ruber International Hospital, [[Madrid]], [[Kingdom of Spain]] | full name = Leonor de Todos los Santos de Borbón y Ortiz<ref>{{Spanish name 2|de Borbón|Ortiz|plain=yes}}</ref> | house = Bourbon-Anjou | father = [[Felipe VI of Spain]] | mother = [[Letizia Ortiz Rocasolano]] | religion = [[Roman Catholic]] | signature = Leonor spain sig.svg }} {{Spanish Royal Family}} '''Leonor, Princess of Asturias''' (born 31 October 2005), is an [[Infante|Infanta of Spain]]. She is the present heiress to the Spanish throne.<ref>[http://www.casareal.es/ES/FamiliaReal/Reina/Paginas/reina_biografia.aspx Royal family official website – Third paragraph fourth line.]</ref> Leonor was born at Ruber International Hospital in Madrid, She is the elder daughter of [[Felipe VI of Spain|King Felipe VI]] and [[Queen Letizia of Spain]]. She became heiress on her father's accession to the throne, 19 June 2014. Her younger sister, [[Infanta Sofía of Spain|Infanta Sofía]], follows her in the line of succession. On 22 September 2023, the [[Royal Household of Spain|Royal Household]] said that the princess would be sworn in the [[Constitution of Spain|Constitution]] on 31 October 2023, on her 18th birthday.<ref>{{Cite web |date=2023-09-22 |title=La Casa Real confirma que la Princesa Leonor jurará la Constitución el 31 de octubre |url=https://www.abc.es/espana/casa-real-confirma-princesa-leonor-jurara-constitucion-20230922183423-nt.html |access-date=2023-09-22 |website=Diario ABC |language=es}}</ref><ref>{{Cite web |date=2023-09-22 |title=La Princesa Leonor jurará la Constitución ante las Cortes el 31 de octubre y Don Juan Carlos irá a la fiesta privada en El Pardo |url=https://www.elmundo.es/espana/2023/09/22/650dbfa621efa021208b