Question: What is the full name of one of the double agents who met Russian handlers at St Ermin's Hotel in London?

<P0-S0> The Cambridge Spy Ring was a ring of spies in the United Kingdom, who passed information to the Soviet Union during World War II and was active at least into the early 1950s. <P0-S1>  Four members of the ring were originally identified: Kim Philby (cryptonym: Stanley), Donald Duart Maclean (cryptonym: Homer), Guy Burgess (cryptonym: Hicks) and Anthony Blunt (cryptonyms: Tony, Johnson). <P0-S2>  Once jointly known as the Cambridge Four and later as the Cambridge Five, the number increased as more evidence came to light. <SEP> <P1-S0> St. Ermin's Hotel is a four-star central London hotel adjacent to St James's Park underground station, close to Westminster Abbey, Buckingham Palace and the Houses of Parliament. <P1-S1>  The Grade II-listed late Victorian building, built as one of the early mansion blocks in the city is thought to be named after an ancient monastery reputed to have occupied the site pre-10th century. <P1-S2>  Converted to a hotel in 1896–99, it became during the 1930s, through the Second World War and beyond, a meeting place of the British intelligence services, notably the birthplace of the Special Operations Executive (SOE), and where notorious Cambridge Five double agents Philby and MacLean met their Russian handlers. <SEP> <P2-S0>  Commonly northbounds will stage at 4th Ave on the #1 to await clearance. <P2-S1>  The tracks from left to right in Kayne Ave are as follows: 100, 99, 98, 12, 3. <P2-S2>  The tracks converge onto one single main, at 000/0BA196.6 known as Brentwood. <P2-S3>  The Memphis, Tennessee Ex-L&N Bruceton Subdivision meets with the Terminal. <P2-S4>  This is where the Radnor A yard meets the main. <P2-S5>  The right side turns into a single track shortly, and will become the Chattanooga Subdivision, and the left side runs south to Brentwood. <P2-S6>  Commonly, the #2 track south of the signals is used to halt trains. <P2-S7>  Then tracks run south to Fogg St/South End where things get complicated. <P2-S8>  And there is also a connection/delivery track to the Nashville and Eastern Railroad which connects the Tennessee Central Railroad Museum to a major railroad. <P2-S9>  The right track is the main, S&NA North, while the left track is the Nashville Subdivision which runs to Columbia and exchanges freight with the TSRR. <P2-S10>  From here in Madison begins the double track that stays for another 22 miles south to Brentwood, Tennessee. <P2-S11>  At this point, trains had been running at track speed of around 40. <P2-S12>  From there, the cutoff hits the Intermediates at 0BA187.0 known as Chicken Pike. <P2-S13>  On the #1 track about a half a mile south, another connecting track is present. <P2-S14>  The Kayne Ave yard is also here in this area, which houses some frieght and some switcher engines. <SEP> <P3-S0> St Mary Axe was a mediaeval church in the City of London. <P3-S1>  Its full name was "St Mary, St Ursula and her 11,000 Virgins", and it was also sometimes referred to as "St Mary Pellipar". <P3-S2>  Its common name (also "St Mary" [or "Marie"] "at the Axe") derives from the sign of an axe over the east end of the church. <P3-S3>  The church's patrons were the Skinners' Company.