Stanley Mordaunt Leathes, The Cambridge Modern History, Volume 1… (1902)
“ But Charles VII had married an Angevin wife, and was in intimate alliance with the House of Anjou. Throughout his long reign the Duke Rene (1431-81) , more interested in literature and art and other peaceful pastimes than in political intrigue, gave little trouble to France. His son, John of Calabria, joined in the League of the Public Weal, but was afterwards reconciled to Louis XI. He lost his life in an adventurous attempt to win a crown in Catalonia (1470) . The grandson, Nicolas of Calabria, was one of the aspirants to the hand of Mary of Burgundy, but died in 1472. ”
