 Sebastian held his dignity until early 1277 at the latest, as Stephen, son of Tekesh was styled as "perpetual count" of Torna County in that year.The Tekesh sons were granted the whole county and its castle, Szádvár around that time.Sebastian died sometime before 1288, as the estate of Nyilas was already owned by a certain Dominic, son of Wulch in that year.