Abbreviations
| ASF | Archivio di Stato di Firenze |
| CESQB | Correspondence of Elisabeth Stuart Queen of Bohemia |
| CSPAWI | Calendar of State Papers Americas and West Indies |
| CSPCEICJ | Calendar of State Papers Colonial, East Indies, China and Japan |
| CSPD | Calendar State Papers Domestic |
| CSPV | Calendar State Papers Venice |
| EMBO | Early Modern Books Online |
| EMLO | Early Modern Letters Online |
| LPPR | Letters of Peter Paul Rubens |
| LJC | Letters of John Chamberlain |
| ODNB | Oxford Database of National Biography |
| OED | Oxford English Dictionary |
| PC | Privy Council |
| SPO | State Papers Online |
| USTC | Universal Short Title Catalogue |