Duke Keramsov is a celebrated war hero. After returning from the war, he converted his estate in Keramzin into an orphanage and a home for the war widows. he has a city house in Os Alta that he goes to in the winter.
Alina Starkov and Malyen Oretsev were one of the orphans on his estate, but it appears that they barely had any interaction with him.
Shadow and Bone
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The Duke had roughly appeared during the Winter ball, but had not recognized Alina upon meeting her.
