Ferdinand Maximilian Josef Maria von Habsburg-Lothringen signs the Treaty of Miramar, accepting the crown of Mexico.
[added 4/10/2022]
Subsequent Events:
References:
Bruce Catton, The Civil War, (New York: American Heritage, 1960; Boston: Houghton-Mifflin, 1987), 297.
French intervention in Mexico – Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/French_intervention_in_Mexico