KnowraJoanna of CastileLinked fromLinked fromThe 9 pages that link to Joanna of Castile, each with the reason it gives.All 9Related 7Compared with 2Charles V, Holy Roman EmperorRelated: Charles inherited the Spanish crowns through his mother, whose own claim derived from the Catholic Monarchs.Ferdinand II of AragonCompared with: Her contested claim was the central rival to Isabella’s accession, which Ferdinand supported.Maximilian I, Holy Roman EmperorRelated: Her marriage to Maximilian’s son helped bring Spanish inheritance into the Habsburg family.Kingdom of CastileRelated: Her succession transferred the Castilian crown to the Habsburg dynasty.Catholic MonarchsCompared with: Her rival claim challenged Isabella’s accession and drew Portuguese support.Habsburg SpainRelated: Her dynastic claim connected Charles to the Spanish crowns.Treaty of AlcáçovasRelated: Her disputed succession helped draw Portugal into war with Castile.Alfonso V of PortugalRelated: Alfonso’s marriage to Joanna underpinned his claim to the Castilian crown.Spanish HabsburgsRelated: Her inheritance brought the Habsburg dynasty to the Spanish throne through Charles.