Louis I of Naples

Louis of Taranto (1320–1362), second son of Philip I of Taranto and Catherine of Valois, won the crown of Naples by marriage. In 1347 he wed his cousin, Queen Joanna I, two years after her husband Andrew was murdered in a conspiracy that may have involved them both.

When Louis I of Hungary invaded to avenge his brother, the couple fled to Avignon, where Joanna sold the city to Pope Clement VI; the Black Death forced the Hungarians out in 1348 and they returned. Louis took all real power from his wife and purged her supporters. Another Hungarian invasion in 1350 drove them to Gaeta.

In 1352 Clement recognized him as co-ruler, and they were crowned together. He died on 26 May 1362, and Joanna ruled alone again. Petrarch called him violent, deceitful and cruel; his best act was making Niccolò Acciaioli grand seneschal.