Page "Alfonso V of Aragon" Paragraph 3

After an attempt to arrest the queen herself failed, Joan called Sforza who defeated the Aragonese milices near Castel Capuano in Naples.

Alfonso fled to Castel Nuovo, but the help of a fleet of 22 galleys led by Giovanni da Cardona improved his situation.

Sforza and Joan ransomed Caracciolo and retreated to the fortress of Aversa.

Here she repudiated her earlier adoption of Alfonso and, with support from Martin V, named Louis III as her heir instead.