"Balthasar Charles (17 October 1629 – 9 October 1646), Prince of Asturias, Prince of Girona, Duke of Montblanc, Count of Cervera, and Lord of Balaguer, Prince ...
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of Viana was heir apparent to all the kingdoms, states and dominions of the Spanish monarchy until his death." - (en.wikipedia.org 03.10.2020)
