Primary Sources: Medieval and Renaissance Periods: Italy

"Originally commissioned in the 15th century by the Viscontis, a Milanese family that dominated the cultural life of northern Italy in the 14th and 15th centuries, this deck is one of the oldest sets in existence. The cards are attributed to Bonifacio Bembo, an Italian fresco artist who flourished between 1447-1478."
Visconti Tarot. Cary Collection of Playing Cards, Beinecke Rare Book and Manuscript Library, Yale University

"Semi-official reports from the envoys of the Duke of Milan in England. They have
little knowledge of the geography of England and are generally thought to rely quite a
lot on rumour. For example, in 17 June 1471 they report that Edward IV had not only
ordered the murder of Henry VI, but also of Margaret of Anjou. However, these
reports give a sense of the concerns and opinions of the moment such as the
popular belief that Warwick was playing a bigger part in government than King
Edward himself immediately after 1461."
Using historical sources: A Guide for A-level Students
with particular reference to The Wars of the Roses by
Jonathan Cripps, Kirstie Murray, Helen Snelson