T
HE PORTUGUESE CRISIS OF 1807 
133 
ceed, providing a full explanation of government policy while consider-
ing  all  circumstances  that  might  arise.  If  Portugal  shut  her  ports,  but 
there were no other hostile measures, Strangford was to remain in Lis-
bon. If anything did arise that made his residence in Lisbon inexpedient 
he was  to leave for  England. If the Regent adhered to  his promises to 
evacuate Lisbon and asked for Strangford to accompany him, he was to 
accompany the Portuguese and act as minister to that court in Brazil.
75
 
  Canning  forwarded  a  copy  of  the  convention  particularly  directing 
Strangford’s attention to the 2
nd
 Article, which ‘stipulates for military aid 
from this country to protect the embarkation at Lisbon’. Without guaran-
tees of safety from the Portuguese ‘it is impossible that either a military or 
even a naval force of His Majesty’s should be safely trusted in the Tagus’. 
Canning  had  received  assurances  from  Sousa  that  Portugal  would  not 
consent to ‘any measure unfriendly to the interests of this country’, but 
was unsure whether João would resist the demand to shut the ports, par-
ticularly as Sousa had signed the statement of intent declaring the Regent 
would close the ports if it was thought France could be appeased. If Por-
tugal did shut the ports, Canning realised all Europe would be closed to 
British commerce and  he  would  be  ‘compelled to treat them all as one 
common  enemy’.  He  thought  the  Portuguese  experience  of  apparent 
danger followed by salvation, as had recently happened in 1806, instilled a 
large degree of complacency in the court. If João did evacuate, Canning 
mused, it might be possible to establish a Regency Council which, with 
British assistance, could organise the defence of the country.
76
 
  On  22  October  Canning  informed  Strangford  an  expedition  would 
sail for Madeira as soon as the Portuguese closed the ports. Next day he 
detailed  an  ‘abundance  of  rumours…of  the  most  alarming  nature’,  in-
cluding  reports of  French troops marching through  Spain,  that an em-
bargo  had  been  laid  on  British  shipping  and  the  Portuguese  navy  was 
ceded to France. Despite these rumours Canning had ‘on the faith of the 
Prince  Regent’s  letter,  of  your  Lordship’s  dispatches,  and  of  M  de 
Souza’s readiness to give every security that treaty could give, proceed in 
the course in which we set out and I have accordingly signed the Con-
vention’. He was worried Sousa had not received official instructions on 
two points: the admission of British goods into Brazil, which had been 
promised in the convention, and the nature of instructions sent to Ma-
deira.  With  regard  to  the  evacuation  Strangford  was  to  work  together 
with Almeida. It was ‘the one point to press: and almost equally whether 
the Prince is forced to it by the advance of the  French army, or is en-