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[[File:Peter Calvocoressi.jpg|thumb|right]]&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Peter John Ambrose Calvocoressi&amp;#039;&amp;#039;&amp;#039; (17 November 1912 &amp;amp;ndash; 5 February 2010){{sfn|Anonymous|2010}} was a [[British people|British]] lawyer, Liberal politician, historian, and publisher. He served as an intelligence officer at [[Bletchley Park]] during [[World War II]].&lt;br /&gt;
&lt;br /&gt;
==Early years==&lt;br /&gt;
Calvocoressi was born in [[Karachi]], now in [[Pakistan]], to a family of [[Greeks|Greek]] origins from the island of [[Chios]].{{sfn|Calvocoressi|2001|p=14}} His mother, Irene ([[Married and maiden names|née]] Ralli), was descended from one of the founders of [[Ralli Brothers]], who were prominent Greek families of Chios who came to London at the time of the [[Greek Diaspora#Modern times|Greek Diaspora]]. When he was three months old, the family moved to [[Liverpool]], [[England]].{{sfn|Anonymous|2010}}&lt;br /&gt;
&lt;br /&gt;
Calvocoressi&amp;#039;s father Pandia had spent the first seven years of his life in Manchester and the next ten at San Stefano (on the outskirts of [[Istanbul]]). He attended the [[University of Paris|Sorbonne]] from the age of 17 for three years and then joined the family firm in New York.{{Citation needed|date= June 2018}} Pandia Calvocoressi and Irene Ralli  married in London in 1910.&amp;lt;ref&amp;gt;{{Citation |title = Family Genealogy Pages: Pantias John (John) Calvocoressi |url = http://www.agelastos.com/genealogy/getperson.php?personID=i2028&amp;amp;tree=agelasto}}&amp;lt;/ref&amp;gt; Shortly afterwards Pandia was posted to India where Calvocoressi was born. His mother and maternal grandmother were both born in India but spent most of their lives in England.{{Citation needed|date= June 2018}}&lt;br /&gt;
&lt;br /&gt;
In 1926 he was elected a scholar of [[Eton College|Eton]] in second place, a position which he retained for the greater part of the next five years. Switching from the standard Classical curriculum to History, he was taught by, among others, the young [[Robert Birley]]. At [[Balliol College, Oxford]], in 1931–1934, he was tutored in Modern History mainly by B. H. Sumner and [[Vivian Hunter Galbraith|V. H. Galbraith]], obtaining a First.{{sfn|Irvine|Tusa|2010}}&lt;br /&gt;
&lt;br /&gt;
==Career==&lt;br /&gt;
He was [[Call to the Bar|called to the Bar]] in 1935 and worked in Chancery Chambers until the outbreak of World War II. He spent most of the war as an [[RAF Intelligence]] officer at GC&amp;amp;CS [[Bletchley Park]].{{sfn|Calvocoressi|2001}} He worked in &amp;#039;[[Hut 3]]&amp;#039;, where decrypted [[Enigma machine|Enigma]] messages were translated and analysed, and [[Ultra]] intelligence was prepared for dispatch to commanders in the field. Calvocoressi rose to be head of the Air Section, which dealt with [[Luftwaffe]] intelligence.&amp;lt;ref&amp;gt;{{ Citation | last = Calvocoressi | first = Peter  | year = 1980 | title = Top Secret ULTRA | publication-place = London | publisher = Cassell | isbn = 9780304305469 }}&amp;lt;/ref&amp;gt; In summer 1945, he was accredited by British Intelligence to obtain evidence for all four Chief Prosecutors at the [[Nuremberg Trials|International Military Tribunal at Nuremberg]].{{sfn|Irvine|Tusa|2010}} As a member of the British prosecution team, he cross-examined former German Field Marshal [[Gerd von Rundstedt]] during the trial.  Calvocoressi later advised the US Chief Prosecutor (General [[Telford Taylor]]), who had been his Bletchley colleague, in some of the American follow-up trials (1946–1949).{{Citation needed|date= June 2018}}&lt;br /&gt;
&lt;br /&gt;
In 1945, he contested the General Election, as the [[Liberal Party (UK)|Liberal]] candidate for [[Nuneaton (UK Parliament constituency)|Nuneaton]],{{sfn|Irvine|Tusa|2010}} finishing third.{{Citation needed|date= June 2018}}&lt;br /&gt;
 &lt;br /&gt;
In 1950&amp;amp;ndash;1955 he worked at the Royal Institute for Foreign Affairs ([[Chatham House]]), writing five volumes in the series of &amp;#039;&amp;#039;Annual Surveys of International Affairs&amp;#039;&amp;#039;, which had previously been written by [[Arnold J. Toynbee|Arnold Toynbee]]. From 1955 to 1966, he was a partner in the publishing firms of [[Chatto and Windus]] and the [[Hogarth Press]]. From 1966 to 1973, he was Reader in International Relations at the [[University of Sussex]], a post which was created for him.{{sfn|Irvine|Tusa|2010}}&lt;br /&gt;
&lt;br /&gt;
In 1973 he was enticed back to publishing by the offer of the newly created post of Editor-in-Chief of [[Penguin Books]]. He was appointed Publisher and Chief Executive of Penguin in the following year. But he fell into disagreements with Penguin&amp;#039;s parent company [[Longman|Pearson Longman]], and was removed in 1976.{{Citation needed|date= June 2018}}&lt;br /&gt;
&lt;br /&gt;
During this period (1955-1976) he was for ten years a part-time member of the [[United Nations]] [[Sub-Commission on the Promotion and Protection of Human Rights]], and was Chairman of the Africa Bureau, the [[London Library]], Chios Charities, and [[Open University]] Enterprises Ltd. He also served on the governing bodies of Chatham House, the [[Institute of Strategic Studies]], and [[Amnesty International]].{{sfn|Irvine|Tusa|2010}}&lt;br /&gt;
&lt;br /&gt;
He wrote twenty books, mostly on contemporary history; one of these – &amp;#039;&amp;#039;World Politics Since 1945&amp;#039;&amp;#039; – passed through nine editions. &amp;#039;&amp;#039;Threading My Way&amp;#039;&amp;#039;, an autobiography, appeared in 1994. He set private life before and above his career and never had cause to question this priority.{{Citation needed|date= June 2018}}&lt;br /&gt;
&lt;br /&gt;
In 1990, he was awarded an [[honorary doctorate]] by the Open University.&lt;br /&gt;
&lt;br /&gt;
==Bibliography==&lt;br /&gt;
* &amp;#039;&amp;#039;Nuremberg: The Facts, the Law and the Consequences&amp;#039;&amp;#039;, 1948&lt;br /&gt;
* &amp;#039;&amp;#039;Survey of International Affairs 1947-1948&amp;#039;&amp;#039;, 1952&lt;br /&gt;
* &amp;#039;&amp;#039;Survey of International Affairs 1949-1950&amp;#039;&amp;#039;, 1953&lt;br /&gt;
* &amp;#039;&amp;#039;Survey of International Affairs 1951&amp;#039;&amp;#039;, 1954&lt;br /&gt;
* &amp;#039;&amp;#039;Survey of International Affairs 1952&amp;#039;&amp;#039;, 1955&lt;br /&gt;
* &amp;#039;&amp;#039;Survey of International Affairs 1953&amp;#039;&amp;#039;, 1956&lt;br /&gt;
* &amp;#039;&amp;#039;Middle East Crisis&amp;#039;&amp;#039; (with Guy Wint), 1957&lt;br /&gt;
* &amp;#039;&amp;#039;South Africa and World Opinion&amp;#039;&amp;#039;, 1961&lt;br /&gt;
* &amp;#039;&amp;#039;World Order and New States: Problems of Keeping the Peace&amp;#039;&amp;#039;, 1962&lt;br /&gt;
* &amp;#039;&amp;#039;Suez: Ten Years After&amp;#039;&amp;#039; (with Anthony Moncrieff), 1967&lt;br /&gt;
* &amp;#039;&amp;#039;World Politics Since 1945&amp;#039;&amp;#039;, 1968; 2008, 9th ed.&lt;br /&gt;
* &amp;#039;&amp;#039;Total War: Causes and Courses of the Second World War&amp;#039;&amp;#039; (with Guy Wint and John Pritchard), 1972 &lt;br /&gt;
* &amp;#039;&amp;#039;The British Experience 1945-75&amp;#039;&amp;#039;, 1978&lt;br /&gt;
* &amp;#039;&amp;#039;Freedom to Publish&amp;#039;&amp;#039; (with Ann Bristow), 1980&lt;br /&gt;
* &amp;#039;&amp;#039;Top Secret Ultra&amp;#039;&amp;#039;, 1980&lt;br /&gt;
* &amp;#039;&amp;#039;From Byzantium to Eton: A Memoir of a Millennium&amp;#039;&amp;#039;, 1980&lt;br /&gt;
* &amp;#039;&amp;#039;New Alignments&amp;#039;&amp;#039; (with Philip Windsor), 1982&lt;br /&gt;
* &amp;#039;&amp;#039;Independent Africa and the World&amp;#039;&amp;#039;, 1985&lt;br /&gt;
* &amp;#039;&amp;#039;A Time for Peace&amp;#039;&amp;#039;, 1987&lt;br /&gt;
* &amp;#039;&amp;#039;Who&amp;#039;s Who in the Bible&amp;#039;&amp;#039;, 1987&lt;br /&gt;
* &amp;#039;&amp;#039;Resilient Europe: A Study of the Years 1870-2000&amp;#039;&amp;#039;, 1991&lt;br /&gt;
* &amp;#039;&amp;#039;The Cold War as Episode&amp;#039;&amp;#039;, 1993&lt;br /&gt;
* &amp;#039;&amp;#039;Threading My Way&amp;#039;&amp;#039;, 1994 (autobiography)&lt;br /&gt;
* &amp;#039;&amp;#039;Fall Out: World War II and the Shaping of Postwar Europe&amp;#039;&amp;#039;, 1997&lt;br /&gt;
* &amp;#039;&amp;#039;The Penguin History of the Second World War&amp;#039;&amp;#039;, 2 vol., 1999&lt;br /&gt;
* &amp;#039;&amp;#039;World Politics 1945-2000&amp;#039;&amp;#039;, 2000 (= 8th ed. of &amp;#039;&amp;#039;World Politics Since 1945&amp;#039;&amp;#039;)&lt;br /&gt;
* &amp;#039;&amp;#039;Television In College Education&amp;#039;&amp;#039;, 2005&lt;br /&gt;
&lt;br /&gt;
==See also==&lt;br /&gt;
*[[History of cryptography]]&lt;br /&gt;
*[[Cryptanalysis of the Enigma]]&lt;br /&gt;
&lt;br /&gt;
==Notes==&lt;br /&gt;
* [https://web.archive.org/web/20110604052508/http://www.questia.com/PM.qst;jsessionid=FnPVP7Fq8MqG1vyQLxf9ZwpyJ4XnPQY1GRkhwYpv9L1bpZ21q72P!-1454462376!1280456806?a=o&amp;amp;d=5000158183 &amp;#039;&amp;#039;Interview with Peter Calvocoressi&amp;#039;&amp;#039;] by Roger Adelson&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
{{reflist}}&lt;br /&gt;
&lt;br /&gt;
==Sources==&lt;br /&gt;
&lt;br /&gt;
*{{Citation |last = Anonymous |title = Obituary: Peter Calvocoressi |newspaper = Daily Telegraph |date = 5 February 2010 |url = https://www.telegraph.co.uk/news/obituaries/culture-obituaries/7168318/Peter-Calvocoressi.html }}&lt;br /&gt;
*{{Citation |last = Calvocoressi |first = Peter |author-link = Peter Calvocoressi |title = Top Secret Ultra |place = Cleobury Mortimer, England |publisher = M &amp;amp; M Baldwin |year = 2001 | edition = 2nd |isbn = 978-0947712419}}&lt;br /&gt;
*{{Citation | last = Irvine | first = Ian |last2 = Tusa |first2 = John |author2-link = John Tusa | title = Obituary: Peter Calvocoressi | newspaper = The Guardian | date = 8 February 2010 | url = https://www.theguardian.com/theguardian/2010/feb/08/peter-calvocoressi-obituary }}&lt;br /&gt;
&lt;br /&gt;
==External links==&lt;br /&gt;
* [http://www.iwm.org.uk/collections/item/object/80009480 Imperial War Museum Interview from 1987]&lt;br /&gt;
* [http://www.iwm.org.uk/collections/item/object/8www0013003 Imperial War Museum Interview from 1993]&lt;br /&gt;
&lt;br /&gt;
{{Authority control}}&lt;br /&gt;
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{{DEFAULTSORT:Calvocoressi, Peter}}&lt;br /&gt;
[[Category:1912 births]]&lt;br /&gt;
[[Category:2010 deaths]]&lt;br /&gt;
[[Category:Military personnel of British India]]&lt;br /&gt;
[[Category:Academics of the University of Sussex]]&lt;br /&gt;
[[Category:Alumni of Balliol College, Oxford]]&lt;br /&gt;
[[Category:British historians]]&lt;br /&gt;
[[Category:British people of Greek descent]]&lt;br /&gt;
[[Category:GCHQ cryptographers]]&lt;br /&gt;
[[Category:People educated at Eton College]]&lt;br /&gt;
[[Category:People from Karachi]]&lt;br /&gt;
[[Category:Bletchley Park people]]&lt;br /&gt;
[[Category:Royal Air Force personnel of World War II]]&lt;br /&gt;
[[Category:Chatham House people]]&lt;br /&gt;
[[Category:Foreign Office personnel of World War II]]&lt;br /&gt;
[[Category:English barristers]]&lt;/div&gt;</summary>
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