William Capell (1697-1743) was the 3rd Earl of Essex.
Reference:
‘William Capell, 3rd Earl of Essex M, #106718, b. 1697, d. 8 January 1743’, The Peerage, (2011, http://www.thepeerage.com/p10672.htm#i106718 [accessed 23 June 2015]).
Dates: to
Occupation: Unknown
Relationship to Sloane: Virtual International Authority File: