Faustin Soulouque vs William Ernest of Saxe-Weimar

Emperor Faustin I launched a military campaign to reconquer the Dominican Republic, which had gained independence from Haiti in 1844. The Haitian army was defeated at the Battle of Las Carreras by Dominican forces under Pedro Santana, ending the invasion.

Faustin Soulouque, who had been President of Haiti since 1847, proclaimed himself Emperor Faustin I. He established a hereditary monarchy, created a nobility, and modeled his court after Napoleon III's France. This ended Haiti's republican government.

Faustin I ordered a second invasion of the Dominican Republic with a larger army. The Haitian forces were again defeated at the Battle of Santom

A revolution led by General Fabre Geffrard overthrew Emperor Faustin I. He was forced to abdicate and went into exile in Jamaica. The empire was abolished, and Haiti returned to a republican form of government under Geffrard.

William Ernest inherited the grand duchy upon his grandfather Charles Alexander's death. He ruled during the late German Empire, a period of increasing political tension and the lead-up to World War I.

William Ernest oversaw the construction of a new court theatre building in Weimar, designed by architect Max Littmann. The theatre became a major cultural venue, continuing Weimar's tradition of performing arts.

William Ernest abdicated following the German Revolution of 1918, which overthrew the monarchies of the German Empire. Saxe-Weimar-Eisenach became part of the Free State of Thuringia in the Weimar Republic, ending the dynasty's rule.