Rosenborg is a historic football club based in Trondheim, Norway. Founded in 1917, it is one of the most successful teams in Norwegian football history, having won numerous national championships and cups. The club plays its home matches at Lerkendal Stadion, which has a capacity of over 21,000 spectators. The team's colors are black and white, and they are often referred to as "Rosenborg BK." Rosenborg has a strong fan base and is known for its youth academy, which has produced many talented players. The club also competes in European tournaments, representing Norway on the international stage.