It is called Grana Padano and not Grana Padana because the Italian word grana is the masculine noun, il grana, describing this specific cheese, and not the feminine noun la grana, which means grain. Grana Padano has protected designation of origin status since 1996.
Discover Card is the fourth largest credit card brand in the U.S., behind Visa, MasterCard and American Express, with nearly 44 million cardholders.
You may want to delete the duplicate post with your name as the title. I just checked this website: https://www.discover.com/credit-cards/help-center/account/international-use.html. The info on above website explains that your Discover Card will be honored only in businesses that have the Discover logo displayed. If I were you, I'd apply for a Visa or Mastercard since these are accepted worldwide.