Královská ozvěna (1974)

Who would have thought that when the border mountain in King Florinda's kingdom was razed to the ground so that it would not block the sun, the echo would be lost. And a senseless war was to be fought over the lost echo. And the fact that it did not take place in the end was due to the clever and brave princess Bianca. Instead, several weddings took place at once, and the echo was taken care of by the babies born to the young couples.