The Granite Lord is an austere older gentleman with exceedingly pale skin, with shortly cropped white hair and a mustache.
Closer inspection reveals that his skin is made of granite, with small flecks of gray and platinum. Taller then most, his eyes are the palest of gray, matching the flecks in his skin. Normally garbed in archaic chain mail with a covered with a tabard emblazoned with the House coat of arms of the assassinated Emperor of the Shattered Kingdom.
In battle the Granite Lord sprouts massive pearl white wings and wields a large great sword. He moves much faster then would seem possible for a man, never mind someone of his apparent age.