Last name 병서 (병서 , Byeongseo ) , all around the world, is an extremely rare family name. Much more frequently, 병서 is the forename as well as the last name.
炳瑞, and 炳西
, Byeongseo 
) , all around the world, is an extremely rare family name. Much more frequently, 병서 is the forename as well as the last name.