Lady Compton's Letter to her Husband

In Bishop Goodman's *Court of King James I.,* edited by John S. Brewer, M.A. (vol. ii. p. 127..), is a letter from Lady Compton to her husband, William Lord Compton, afterwards Earl of Northampton, written upon occasion of his coming into possession of a large fortune. This letter, with some important variations, is also given in Knight's *London* (vol. i. p. 324.), and, if my memory does not deceive me, in Hewitt's *Visits to Remarkable Places*. This letter is very curious, but I can hardly think it genuine. Can any of your correspondents throw any light on the matter? Was it printed before 1…