Complex sentence: While staying at Sevenwater, Eamonn tells a tale of a recent attack by a band of mercenaries where all his men were killed, his life was spared by a man called the Painted Man.
Split into simpler sentences: While staying at Sevenwaters, Eamonn tells a tale of a recent attack by a band of mercenaries. Upon this attack, all his men were killed, and his life was spared by a man called the Painted Man.