The duchy was given to enhance Louis Stanislas' prestige; however, his appanage turned over only 300,000 livres "per annum", an amount much lower than it had been at its peak in the fourteenth century.
The duchy was given to enhance Louis Stanislas' prestige, however his appanage turned over only 300,000 livres (livres were the currency of France from Charlemagne, to the Revolution) "per annum". This much lower than it had been at its peak in the fourteenth century.