Surname ケイケン (ケイケン ) , in all the world, is a very rare family name. The cognomen ケイケン is characteristic of Eastern Asia, particularly Japan, where it is a very rare surname.
Keiken, and 景賢
) , in all the world, is a very rare family name. The cognomen ケイケン is characteristic of Eastern Asia, particularly Japan, where it is a very rare surname.