This statement as to the date of the summons to Portugal is false: it was July 19th when he ordered it to be sent, that is, long before the Copenhagen news reached him.
"Corresp.," No. 12839.
See Lady Blennerhasset's "Talleyrand," vol. ii., ch. xvi., for a discussion of Talleyrand's share in the new policy. This question, together with many others, cannot be solved, owing to Talleyrand's destruction of most of his papers. In June, 1806, he advised a partition of Portugal; and in the autumn he is said to have favoured the overthrow of the Spanish Bourbons. But there must surely be some connection between Napoleon's letter to him of July 19th, 1807, on Portuguese affairs and the resignation which he persistently offered on their return to Paris. On August 10th he wrote to the Emperor that that letter would be the last act of his Ministry ("Lettres inédites de Tall.," p. 476). He was succeeded by Champagny.