Complex sentence: His latest major work was the opera "The Green Knight" with libretto by Paal-Helge Haugen, which was premiered in Kristiansand, Norway, on March 10,2004.
Split into simpler sentences: His latest major work was the opera "The Green Knight" with libretto by Paal-Helge Haugen. It premiered in Kristiansand, Norway, on March 10,2004.