John Chamberlain (1553–1628) was the author of a series of letters written in England from 1597 to 1626, notable for their historical value and their literary qualities.[1] In the view of historian Wallace Notestein, Chamberlain's letters "constitute the first considerable body of letters in English history and literature that the modern reader can easily follow".[2] They are an essential source for scholars who study the period.[3]