1765, the governors of Nouvelle France, Algeria, Caroline and Louisiane declared independence - until France had a king again. Lacking a navy (because the mostly noble captains didn't want to fight for a republic and thus deserted), France couldn't take them back.
Instead, in 1769 king Francesco III occupied the valuable Caribbean colony for Italy. The other powers protested, since they couldn't interfere. There were rumors that he was killed for taking it.