1. To the most noble Thomas Holles Pelham, duke of Newcastle, lord Lieutenant of Middlesex & Westminster, His Majesty's principal secretary of state, chancellor of the University of Cambridge, & knight of the most noble Order of the Garter this map of the county of Middlesex is dedicated by His Grace's most humble servant R.W. Seale Yale Public content 1766. 2008-06-09T12:55:16Z. 2020-08-17T16:36:51Z. Seale, Richard William, cartographer. publisher not identified. English. cartographic image. Public. England, London., London, Middlesex (England), and Middlesex.