Το καλάθι σου είναι άδειο.
The monogram symbolises the name of the emperor: 'Karolus'.
Painted by Albrecht Dürer (1512).
Notice the raven, which was the Hunyadi family's heraldic beast.
One of Matthias Corvinus' passions was collecting books. The books preserved in his library are the so-called Corvinas.