[k] Luis de Menezes, Historia de Portugal restaurado.
[l] Aubert de Vertot, Histoire de la conjuration de Portugal.
Chapter IV. João IV to João VI
[b] M. M. Busk, op. cit.
[c] H. M. Stephens, article on “Portugal” in the Encyclopædia Britannica.
[d] H. M. Stephens, The Story of Portugal.
[e] S. A. Dunham, op. cit.
[f] Auguste Buchot, Histoire du Portugal.
[g] Ferdinand Denis, “Portugal,” in L’Universe Pittoresque.
[h] Friedrich C. Schlosser, History of the Eighteenth Century (translated by D. Davison).