Jean-Pierre Boyer was one of the leaders of the Haitian Revolution, and the president of Haiti from 1818 to 1843. He reunited the north and south of the country into the Republic of Haiti in 1820 and also annexed the newly independent Spanish Haiti, which brought all of Hispaniola under one Haitian government by 1822. Serving as president for just under 25 years, Boyer managed to rule for the longest period of time of any Haitian leader.

The Kingdom of Haiti, or Kingdom of Hayti was the state established by Henri Christophe on 28 March 1811 when he proclaimed himself King Henri I after having previously ruled as president of the State of Haiti, in the northern part of the country. This was Haiti's second attempt at monarchical rule, as Jean-Jacques Dessalines had previously ruled over the First Empire of Haiti as Emperor Jacques I from 1804 until his assassination in 1806.