Ktaria VII was the seventh planet in its star system. This world was under Ktarian jurisdiction. Ktarians were known to bury their dead there.

Chakotay once went on a tomb excavation on Ktaria VII. He wanted to keep a memento of his first experience there by picking up a rock from the burial site. He later found out that it wasn't just a rock but a sacred stone. He later learned that Ktarians lay thousands of them in the tombs of loved ones, each one representing a special prayer. His actions were, in turn, a desecration of the man's burial site. (VOY: "Emanations")

This planet was only mentioned in dialogue.
The Star Trek Encyclopedia (3rd ed., p. 254) identified this planet as the Ktarian homeworld. ( considered it as a possiblity that it was the Ktarian homeworld.) This was before "Child's Play" where the homeworld's name was given as Ktaris. The Star Trek Encyclopedia (4th ed., vol. 1, p. 446) stated that Ktaris, misspelled in the book as Katarus, was an alternate name for Ktaria VII.