British spy who worked as a double agent for the Soviet Union
He was not one of the Cambridge Five spies, although he associated with Donald Maclean and Kim Philby after reaching the Soviet Union
In his autobiography he claimed that no one died because of his betrayal.
This is most certainly false.
Although he claims his betrayal was ideological, what many historians believe, is that he had a huge ego and was disappointed by the postings he was given.
Don't read his autobiography it's crap.
"I don't know what I handed over because it was so much."
says it all
Mi6 have never made any official statement as to how many died because of his betrayal
considering he gave up 40+ Mi6 officers as well as other agency officers and operations
we can come to our own conclusions that his betrayal at least resulted in one death of an officer/spy
in May 1961 after an in camera trial at the Old Bailey, he was sentenced to the maximum term of 14 years consecutively on each of three counts of spying for a potential enemy and 14 years concurrently on both the two remaining counts – a total of 42 years imprisonment
one year for each of the agents who were killed when he betrayed them, although this is dubious. It was the longest sentence (excluding life terms) ever handed down by a British court
5 yrs into his sentence he escaped