Jagiellonia Bialystok is a Polish football club based in Bialystok, Poland. Founded in 1920, the club has a rich history and has established itself as one of the top teams in the country. Their home venue is the Stadion Miejski, which has a seating capacity of over 22,000 spectators. Jagiellonia Bialystok's major accomplishments include winning the Polish Cup in the 2009-2010 season, which was a historic achievement for the club. They have also finished as runners-up in the Polish Cup on two occasions. The club is commonly known as "Jaga" among its fans. This nickname is derived from the first part of the club's name, Jagiellonia. Jagiellonia Bialystok has a strong fan base and enjoys a fierce rivalry with another Polish club, Lech Poznan. The matches between these two teams are always highly anticipated and generate a lot of excitement among the supporters.