Sigor is an heir to House Deneith. In 994 YK Sigor was assigned to command a brigade of Blademarks on a Cyran contract. During the mission Sigor led a reconnaissance team across the Cyre river into Karrnath, leaving the brigade behind back in Cyre. It was on that day that the Day of Mourning occurred and spare the small recon team that accompanied him, his entire brigade was wiped out. As a result Sigor has poured all of his time and effort into discovering what caused the day of mourning. Sigor has the time and resources to carry out his investigation and often leads forays into the Mournland. He has increasingly become more involved with House Thuranni hoping that the house has any secrets to help his cause.