Name
- Neuveforge, Louis de la, Spanish Envoy at Ratisbon1
- Ordnance Office1
- Orgini, Wolfgang Andreas, Count von Rosenberg1
- Osborne, Thomas, 1st Duke of Leeds, 1632-17121
- Overbecke, Johann1
- Oxenstierna, Bengt, Count, Swedish Foreign Minister; of Add MS 379851
- Plott, Thomas, Agent at the Hague1
- Roberts, Robert, Viscount Bodmin1
- Robinson, John, diplomatist; Bishop of Bristol; Bishop of London, 1650-17231
- Ronquillo, Pedro, of Add MS 379801
- Rudolph Augustus, Duke of Brunswick-Wolfenbüttel1
- Rumpf, Willem Hendrik1
- Russell, Gerard1
- Saxe-Weimar, Duke of1
- Saxony, Family1
- Schaw, Comm. Frederick David, RN1
- Schoenebeck, ? Carl1
- Spinola Doria, Pablo, Marqués de Los Balbases1
- Stratfordd, Francis, of Hamburg1
- Swan, William, late Resident at Hamburg1