Stross Yuen
From Warhammer 40k - Lexicanum
Stross Yuen was a Rogue Trader who was killed by the Night Reapers Chapter when they attacked and destroyed his fleet of ships. When the destruction of Yuen's fleet was linked to the Chapter by the Imperium in 989.M41, the Night Reapers were declared Excommunicate Traitoris.[1]
