1653 George Sitwell was sheriff of Derbyshire. [1]
An extensive essay about the life and times and house of George Sitwell has been published. It mentions son-in-law William Revell. [2]
[1] Thomas Noble, ed., The history, Gazeteer, and Directory of the county of Derby: drawn up from actual observation, and from the best authorities; containing a variety of geological, mineralogical, commercial and statistical information, Vol. 1 (Stephen Glover, 1829), Appendix, 21, [HathiTrust], [HathiTrust].
[2] J. Charles Cox, Memorials of Old Derbyshire (London: Bemrose & Sons, 1907), 325-331, [HathiTrust].