Hunyadi Mátyás was born 23
February 1443, and became king of Hungary in a process that began in
1458 and was completed in 1464 when he was crowned with the Saint
Crown of Frederick III. He was a strong king and favored ordinary
citizens over the nobility. He valued the arts and sciences and
created the Bibliotheca Corviniana, a great library in Buda in 1471.
He was known as Matthias Corvinus because of the raven on his
coat-of-arms. He died 5 April 1490. The souvenir sheet shows a page
from the Missale Romanum of Matthias Corvinus.