... with some relation to ...
Another influential humanist in Hungary was a friend of Janus [Pannonius] ...
http://mek.oszk.hu/02000/02042/html/5.htmlThe other foreigner [the other mentioned was the above noted Antonio Bonfini], Galeotto Marzio, was also Italian. He became acquainted with the poet Janus Pannonius in Ferrara  and visited Hungary several times, staying for long periods. For a time he was librarian to the Royal Library, the Corvina. He also lectured at the University of Bologna. On account of his philosophical views he had to appear before the Inquisition, and it was King Matthias who saved him. A versatile person, he wrote on widely differing subjects. His manuscript, written in Latin, Of the Remarkable, Wise and Amusing Sayings and Deeds of King Matthias, was published posthumously (Vienna, 1563). It is a collection of anecdotes and personal reminiscences of the court of Matthias as seen by a foreigner, frequently witty and entertaining, and always praising Matthias as the true Renaissance Prince, or paying tribute to his eloquence and depth of knowledge. The work displays definite literary ambition, and it is also remarkable as a source of information on the daily life in the court of King Matthias. As Galeotto did not know Hungarian, he could report only business conducted in Latin in the court, yet he did not fail to remark that the noble Hungarian lords and the King were best entertained when singers praised the heroic deeds of their forefathers in their native tongue. Moreover, Matthias’s human weakness also emerges from the anecdotes (e.g. he was an excellent orator in Latin: nevertheless Galeotto once caught him using the relative pronoun in the wrong gender. The king immediately corrected himself, as Galeotto faithfully recorded, yet the modern reader cannot suppress a smile; this mistake is made by many Hungarians, since Hungarian has no grammatical gender). Galeotto, unlike Bonfini who died in Hungary as a naturalized Hungarian and had been ennobled by Matthias, led a life shared by many Humanist scholars; he stayed in various courts* as a guest, whose well-read and often amusing though superficial conversation was a contribution to the entertainment of the court, and a tacitly agreed return service to his royal host.
Kaplan, Tarot Encyclopedia I, p. 28, has to him ...
I found a version of the text from 1552 ...
Galeottus Martius... De doctrina promiscua
apud Ioan. Tornaesium, 1552 - 507 pages
... the chapter xxxxi starts at p. 448 ...
... and ends at p. 479 (this should that, what relates to playing cards)
http://www.treccani.it/enciclopedia/gal ... Biografico)/
Statue at Budapest
He is thick man in the middle