"duel with the sorcerer Disraeli on Westminster Green"
Benjamin Disraeli
Public DomainBenjamin Disraeli - Credit: W. and D. Downey

 Benjamin Disraeli, 1st Earl of Beaconsfield, (21 December 1804 – 19 April 1881) was a British Prime Minister, parliamentarian, Conservative statesman and literary figure. He served in government for three decades, twice as Prime Minister. From 1852 onwards, Disraeli's career was marked by his often intense rivalry with William Ewart Gladstone, who eventually rose to become leader of the Liberal Party.

Creative Commons Attribution Share Alike"Green" - Dean's Yard - Credit: ed g2s

"Westminster Green" could refer to College Green, a patch of grass just outside the Houses of Parliament, on which political interviews frequently take place.  Or it could be Dean's Yard, Westminster, which comprises most of the remaining precincts of the former monastery of Westminster not occupied by the Abbey buildings. It is known to members of Westminster School as Green, and referred to without an article. It is a large gated quadrangle, closed to public traffic, surrounding a green upon which Westminster School pupils have legal rights to play football.