1To Thomas Jefferson from Carlos IV, King of Spain, 6 July 1802 (Jefferson Papers)
Hallandose ajustados los Tratados Matrimoniales de nuestro muy amado hijo Dn. Fernando , Principe...
2To Thomas Jefferson from Carlos IV, King of Spain, 9 September 1802 (Jefferson Papers)
Igualada, Spain, 9 Sep. 1802 . Having received the news that the betrothal of his son Fernando,...