Ok, games being my thing let me give you a few further bits. Nine of the cards will have numbers. Literacy being less common, people relied on the symbols and counted or matched. Spanish decks would number 1-7 or 1-9 depending on the game. Many of their games would also use non linear scoring for trick taking. (So it might score 7, 1,2,6,5,4,3 for high card). Cacho may be the most famous of the early games and dates to at least 1690. Rentoy may have come from Belgium and dates to before 1600. It used a regular deck but omitted the 8,9 and 10's. It is a team trick taking game where scoring again has a card out of order ( aces fall between the 7 and Jack) and the Trump suit further advances the 2 to the strongest position. You can find rules for a game known as "laugh and lie down" which would be a great filler for squares as a card game. Landsknecht may be the most famous of this era. Played by German mercenaries, it involves one player as the bank betting against the others on pairs being dealt. Period dice games include Gluckshaus, Inn and Inn, As much with two as One, and liar's dice ( which has a different name in every nation and claims origins in every port city). But keep in mind, card games are pretty non existent until the printing press. Before that, you had to hire artisans to hand make your cards . where dice were pretty easy to carve. A very rate set of cards went to auction a couple years ago. A full deck belonging to the Spanish Royal family hand engraved silver plates. ( not for printing, the actual cards were metal).