Final answer:
Empress Marie Louise did not publicly speak out against Napoleon, but their marriage was controversial due to its perceived betrayal of revolutionary principles.
Step-by-step explanation:
Empress Marie Louise, Napoleon's second wife, did not publicly speak out against him. However, their marriage was not without controversy. When Napoleon divorced his first wife and married Marie Louise, it was seen by some as a betrayal of the anti-monarchist revolutionary principles that Napoleon had previously advocated. This led to suspicion, protest, and even military desertion.