Some sentence examples which use the word 'cachet'
"There are no lettres de cachet nowadays, Francois," he added tartly to his brother.
In order to enforce the registration of edicts the king would send lettres de cachet, known as lettres de jussion, which were not, however, always obeyed.
He incurred great unpopularity by his abuse of lettres de cachet, and had to resign in 1775.