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Not to be confused with Herzoslovakia

In the novel Third Girl, Herzogovinia is a European country. They have an embassy in London. Sir Roderick's personal assistant Sonia is from Herzogovinia.

Herzogovinia also occurs in Hallowe'en Party. Olga Seminoff, an au pair girl who disappeared some years before the events in the book, came from Herzogovinia.

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