Rinnah,

I would guess that "Jutte" corresponds to Jette or Jetty. Jetty is
sometimes the nickname for Henriette.

As to "Kunegunda," I could not help a smile, as the French equivalent
"Cunegonde" is an extremely old-fashioned name, probably of Germanic
derivation. However, it may have been considered romantic or elegant in
19th century Bohemia.

Cordially,

Henny