A genealogical survey of the peerage of Britain as well as the royal families of Europe

Brazilian Empire¹
House of Bragança
  Pedro I (1822-1831, abdicated) 
  Pedro II (1831-1889, deposed) 
 Became a republic in 1889

Mexican Empire¹
House of Habsburg-Lorraine
  Maximilian I (1864-1867, deposed) 
 Became a republic in 1867

1. [S38] John Morby, Oxford Dynasties of the World (Oxford, U.K.: Oxford University Press, 1989), page 243.
2. [S38] ibid., page xx.