Editing Joanna of Castile (section)

====Son as co-monarch====
As a result of the death of her father, Ferdinand II, on 23 January 1516, Joanna became Queen of Aragon. Cisneros and the regency council hid the news of her father's death from her, pretending he still lived and ruled. Her then-17-year-old son Charles arrived in Asturias at the Bay of Biscay in October 1517. Until his arrival, the Crown of Aragon was governed by Archbishop [[Alonso de Aragón]] (an illegitimate son of Ferdinand) and her Crown of Castile was governed by Cardinal Francisco Jiménez de Cisneros. On 4 November, Charles and his sister [[Eleanor of Austria|Eleanor]] met their mother Joanna at Tordesillas – there they secured from her the necessary authorisation to allow Charles to rule as her co-King of Castile and León and of Aragon. Despite her acquiescence to his wishes, her confinement would continue and Charles expanded the deceptions surrounding her, later hiding the 1519 death of Emperor [[Maximilian I, Holy Roman Emperor|Maximilian]] from her.<ref>{{Cite book |last=Parker |first=Geoffrey |title=Emperor: A New Life of Charles V |date=2019 |publisher=Yale University Press |isbn=978-0-300-19652-8 |location=London |pages=79–80}}</ref> The Castilian ''Cortes'', meeting in Valladolid, spited Charles by addressing him only as ''Su Alteza'' ("Your Highness") and reserving ''Majestad'' ("Majesty") for Joanna.<ref name="moneda Carlos"/>{{rp|144}} However, no one seriously considered rule by Joanna a realistic proposition.<ref name="Elliott"/>{{rp|143–146}}

In 1519, Charles I ruled the Crown of Aragon and its territories and the Crown of Castile and its territories, in personal union. In addition, that same year Charles was elected [[Holy Roman Emperor]]. The kingdoms of Castile and Aragon (and Navarre) remained in personal union until their jurisdictional unification in the early 18th century by the [[Nueva Planta decrees]], while Charles eventually abdicated as Emperor of the Holy Roman Empire in favour of his brother Ferdinand, and as King of Spain in favour of his son [[Philip II of Spain|Philip]] – an act that represented the "transition from a universal empire to defence of the interests of the 'Austrian family' (austriacismo), in other words, to a close alliance between two parts of the dynasty, aimed at guaranteeing the [[hegemony]] of Catholicism and of the dynasty within Europe".<ref>{{cite book |last=Kagarlitsky |first=Boris |title=From Empires to Imperialism: The State and the Rise of Bourgeois Civilisation |date=27 June 2014 |publisher=Routledge |isbn=978-1-317-66870-1 |page=137 |url=https://books.google.com/books?id=ANfpAwAAQBAJ&pg=PT137 |access-date=26 July 2023 |language=en}}</ref><ref>{{cite book |last=Curtis |first=Benjamin |title=The Habsburgs: The History of a Dynasty |date=12 September 2013 |publisher=A&C Black |isbn=978-1-4411-5002-8 |page=99 |url=https://books.google.com/books?id=svNLAQAAQBAJ&pg=PA99 |access-date=26 July 2023 |language=en}}</ref>