Proper noun
(fiction) An imaginary country located in the Balkans and enemy of Borduria, in the comic book series The Adventures of Tintin.
(by extension) A generic name of a fictional country, generally contrasted with a rival counterpart Borduria.
Source: en.wiktionary.orgBoth were set after World War II, at a time when the various Balkan monarchies providing models for the fictional Syldavia had been overthrown and their rulers exiled. Source: Internet
Instead, a paper by Richardson entitled "Generalized Foreign Politics: A Story in Group Psychology" was published in The British Journal of Psychology Monograph Supplements in 1939, but did not mention Syldavia or Borduria. Source: Internet
Hergé's assistant Har Brok writes that Syldavia "may have been modelled after a country like Romania or Yugoslavia". Source: Internet
Suspecting that these events are linked to Syldavia, Tintin decides to accompany Professor Alembick on his forthcoming visit to the country. Source: Internet
The King then said the motto and decreed that the ruler of Syldavia must have hold on the sceptre, otherwise he would lose his authority, as it had saved his life. Source: Internet
There are various inspirations for Syldavia. Source: Internet