Complex sentence: After a new war a final compromise 1157 made Canute the ruler of Zealand but during the peace banquet (the "Bloodfeast of Roskilde") he was killed allegedly by one of Sweyn's warriors.
Split into simpler sentences: After a new war, a final compromise in 1157 made Canute the ruler of Zealand. During the peace banquet (the "Bloodfeast of Roskilde") he was killed, allegedly by one of Sweyn's warriors.