Complex sentence: It was merged with the existing Gundsø and Roskilde municipalities to form the new Roskilde municipality, which created a municipality with an area of 212 km² and a total population of 79,441 (2005).
Split into simpler sentences: It was merged with existing Gundsø and Roskilde municipalities to form the new Roskilde municipality. This created a municipality with an area of 212 km² and a total population of 79,441 (2005).