maximillion i believe
'Helping' is not the best word to describe the invasion of Mexico by French forces. The name of the French emperor behind such invasion was Napoleon III.
Maximilian of Habsburg
Maximilian I, and the invaders were the French.
Yes, he was born Austrian but he was installed by invading French forces as a puppet emperor of Mexico. His name was Maximilian of Hapsburg.
Austro-Hungarian Archduke Fernando Maximilian, who was named emperor of Mexico in 1864
He was installed as part of a puppet regime led by the French Empire (Napoleon III), when French forces invaded Mexico. See related questions.
The French emperor, Napoleon III, sent a total force of 25000 man to Mexico
the presence of French troops and a puppet emperor in Mexico
There were two instances of such event:1823 - When Agustin I was deposed and Mexico changed from an empire to a federal republic.1867 - When Mexico won its war against French forces and captured and executed Maximilian I.
France did not have an Emperor during the French Revolution, Napoleon became the Emperor of the French in 1804.
It was a decisive victory for Mexico, with 462 French soldiers killed against only 83 Mexican casualties.
Maximillian