The "City of London" was a densely populated area in the period up to 1707. The composition of the City electorate was not as democratic as that of some other borough constituencies, such as neighbouring Westminster. The right of election was held by members of the Livery Companies. However the size and wealth of the community meant that it had more voters than most other borough constituencies. Only Westminster had a larger borough electorate. Duke Henning estimated the City liverymen at about 4,000 in 1661 and about 6,000 by 1680.