Biography.guide
Home › People › Engineer › Edward Fokczyński
Portrait of Edward Fokczyński

Edward Fokczyński

1896 – 1944

Polish engineer

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About Edward Fokczyński

Lived 1896 – 1944 (aged 47–48). Edward Fokczyński was a Polish engineer.

Edward Fokczyński was one of the four directors of the AVA Radio Company, an electronics firm established in Warsaw, Poland, in 1929. AVA produced radio equipment for the Polish General Staff's Cipher Bureau, which was responsible for the radio communications of the General Staff's Intelligence Section (Oddział II).

After the Cipher Bureau's mathematician-cryptologist Marian Rejewski in December 1932 deduced the wiring in the German Enigma rotor cipher machine, AVA produced Enigma "doubles" and all the electro-mechanical equipment that was designed at the Cipher Bureau to facilitate decryption of the German ciphers.

Life Fokczyński was an autodidact whose formal education did not extend beyond four grades of primary school at Pabianice. He worked there as a journeyman locksmith before moving in 1913 to Łódź, where he found a job in the electrical engineering firm of Knapik and Company.

In 1919 Fokczyński enlisted in the Polish Army, serving in a radio battalion and later in Field Wireless Station No. 4. Mustered out in 1922, he worked a couple of years as a technician in the infant Polish broadcasting industry, where he was judged capable, intelligent, reliable, and gifted in radio work.

After the Cipher Bureau's mathematician-cryptologist Marian Rejewski in December 1932 deduced the wiring in the German Enigma rotor cipher machine, AVA produced Enigma "doubles" and all the electro-mechanical equipment that was designed at the Cipher Bureau to facilitate decryption of the German ciphers. The Poles' reading of German ciphers laid the foundation for the western Allies' Ultra cipher-breaking operations, beginning seven years later, during World War II. Before the war, AVA also produced the Cipher Bureau-designed Lacida rotor cipher machine.

After the invasion of Poland in 1939, Fokczyński was one of the essential Cipher Bureau and AVA personnel who made it to France to continue their war on the Enigma cipher at PC Bruno, outside Paris, where the Poles collaborated with their French and British allies. When France capitulated to Nazi Germany in June 1940, Fokczyński and his colleagues were transported by their French host, Colonel Gustave Bertrand, to a post codenamed Cadix, outside Uzès, in southern, Vichy France.

On 8 November 1942 the Allies landed in North Africa (Operation Torch). On 9 November Bertrand evacuated Cadix, and the Poles set out for the Côte d'Azur. Two days later, the Germans abruptly invaded the French Free Zone, putting an end to the collaborationist but semi-autonomous Vichy regime and, on 12 November, occupying Cadix.

The Polish team sought, in small groups, to cross the Pyrenees from France into Spain. On 13 March 1943 one such expedition, which included Cipher Bureau chief Colonel Langer, Major Ciężki, Antoni Palluth and Fokczyński, were arrested near Perpignan by the Gestapo. They had been betrayed by their guide. The two officers were sent to Frontstalag 122 at Compiègne, France, and on 9 September 1943 to the SS concentration camp, Sonderkommando Schloss Eisenberg, in Czechoslovakia; they were liberated by American forces on 10 May 1945. Palluth and Fokczyński were sent as slave labor to the Sachsenhausen concentration camp, near Berlin, where both died before war's end. Palluth was killed in an Allied air raid; Fokczyński died from exhaustion. None of the Poles betrayed to the Germans the secret of Enigma decryption.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Born
1896, Pabianice
Birth century
Died
1944, Sachsenhausen concentration camp
Occupation
Awards
Commander with Star of the Order of Polonia Restituta

People in Edward Fokczyński's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Edward Fokczyński's

Frequently asked questions

Who was Edward Fokczyński?

Polish engineer

When was Edward Fokczyński born?

Edward Fokczyński was born in 1896 in Pabianice.

When did Edward Fokczyński die?

Edward Fokczyński died in 1944 in Sachsenhausen concentration camp.

What was Edward Fokczyński's occupation?

Edward Fokczyński was an engineer.

What nationality was Edward Fokczyński?

Edward Fokczyński was Polish.

Sources & further reading

· Wikipedia: Edward Fokczyński

· Wikidata: Q5342945

· DBpedia: Edward Fokczyński

Cite this page

APA: Biography.guide. (2026). Edward Fokczyński. https://biography.guide/edward-fokczynski/

MLA: "Edward Fokczyński." Biography.guide, https://biography.guide/edward-fokczynski/.

Chicago: "Edward Fokczyński." Biography.guide. https://biography.guide/edward-fokczynski/.

Data last updated: 2026-09-26 · Spot an error? Report a correction.

Page generated 2026-09-27 05:14 UTC