Ulises Hilarión Heureaux Leibert nicknamed Lilís, was president of the Dominican Republic from September 1, 1882 to September 1, 1884, from January 6, 1887 to February 27, 1889 and again from April 30, 1889 maintaining power between his terms until his assassination by Ramón Cáceres.

The Dominican Republic is a country on the island of Hispaniola in the Greater Antilles archipelago of the Caribbean Sea, bordered by the Atlantic Ocean to the north. It occupies the eastern five-eighths of the island, which it shares with Haiti, making Hispaniola one of only two Caribbean islands, along with Saint Martin, that is shared by two sovereign states. It is the second-largest nation in the Antilles by area at 48,671 square kilometers (18,792 sq mi), and second-largest by population, with approximately 11.4 million people in 2024, of whom approximately 3.6 million live in the metropolitan area of Santo Domingo, the capital city.