公侯伯子男
こうこうはくしだん
duke, marquis, count, viscount and baron (five ranks of nobility in Japan; 1869-1947)
侯伯 is read as こうはく (kouhaku) and means nobles.
こうはく
kouhaku
こうこうはくしだん
duke, marquis, count, viscount and baron (five ranks of nobility in Japan; 1869-1947)