[i] Sir Nathaniel W. Wraxall, Historical Memoirs of my own Times.
[j] Lord Mahon, History of England.
[k] Charles F. Dumouriez, Mémoires.
[l] James C. Murphy, Travels in Portugal in the Years 1789-1890.
Chapter V. The Nineteenth Century
[b] F. C. Schlosser, Weltgeschichte.
[c] Jules le Lasteyrie, Le Portugal depuis la Révolution de 1820.
[d] William Bollaert, The Wars of Succession of Portugal and Spain from 1820-1840.
[e] A. Buchot, op. cit.