Name
- Frederick III, King of Denmark, 1609-16702
- Frowde, Philip, Governor of the General Post Office, London2
- Fürstenberg, Wilhelm Egon von, Prince Cardinal, Bishop of Strasburg2
- General Post Office, 1660-19692
- Gersdorff, Frederik, diplomat and courtier, 1650-16912
- Gninski, Jan Krzysztof, diplomat, politician and courtier, c 1620-16852
- Gordon, Patrick Leopold, army officer and diplomat, 1635-16992
- Gouge, Katherine, wife of Robert Gouge, fl 1662-16852
- Harington, John, J P for county Somerset2
- Hartley, John, of Manchester2
- Harwich, Essex2
- Hayward, Richard, of Add MS 418042
- Heinsius, Anthonie, Grand Pensionary of Holland2
- High Court of Admiralty, c 1340-18752
- Howard, Thomas, of Worksop; Envoy at Rome2
- Hyde, Henry, 2nd Earl of Clarendon2
- Hünicken, Albrecht Friedrich, Envoy of the Elector of Saxony2
- Ince, John, Secretary of the Hamburg Company2
- Innocent XI, Pope2
- Ireton, Henry, of Add MS 418032