However , his health collapsed and he died in office in August 1827 , after just 119 days in office , the shortest tenure of any British Prime Minister .
Canning then invited several Whigs to join his cabinet .
Canning 's health collapsed and he died in office in August 1827 , after just 119 days in office , the shortest tenure of any British Prime Minister .
Canning then invited several Whigs to join his cabinet .