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On the sign:
GREATER LONDON COUNCIL
THESE TWO HOUSES WERE THE PORTUGUESE EMBASSY 1724-1747 THE MARQUESS OF POMBAL Portuguese Statesman Ambassador 1739-1744 lived here
The plaque is on the house where Sebastião José de Carvalho e Melo, 1st Marquis of Pombal, the Portuguese ambassador to Britain, who later became Portugal’s foreign minister and the man who rebuilt it after the 1755 earthquake, lived. These houses also housed the Portuguese embassy at the time.