His passenger ship, the "Lamoricière" sank in unclear circumstances near the Balearic Islands. Fellow victims of the disaster, among the 222 passengers killed, included Piotr Smoleński and Capt. Jan Graliński, of the prewar Cipher Bureau's Russian section, and a French officer accompanying the three Poles, Capt. François Lane. His symbolic grave is located in the National Pantheon at the Saints Peter and Paul Church in Kraków. In 1938, aged 29, Różycki had married Maria Barbara Mayka. Their son, Janusz Różycki, born May 10, 1939, would complete his studies at Warsaw's Academy of Fine Arts and go on to be a member of the Polish fencing team that won a silver medal at the 1964 Tokyo Olympics. In 1980, Różycki and his two mathematician colleagues were among the heroes of "Sekret Enigmy" (The Enigma Secret), a Polish thriller film about their solution of the German Enigma cipher. Late 1980 also saw a similarly-themed Polish TV series, "Tajemnice Enigmy" (The Secrets of Enigma). On 21 February 2000, Polish President Aleksander Kwaśniewski posthumously awarded Różycki the Grand Cross of the Order of Polonia Restituta for outstanding contributions to his homeland. In 2007, a three-sided memorial was unveiled before the Imperial Castle in Poznań, commemorating the three mathematician-cryptologists (Rejewski, Różycki and Zygalski), alumni of the University of Poznań, who reconstructed the German Enigma machine and developed methods of breaking Enigma ciphers, thus contributing to subsequent Allied victory in World War II. In 2009, the Polish Post issued a series of four commemorative stamps, one of which pictured Różycki and fellow mathematician-cryptologists Marian Rejewski and Henryk Zygalski. In 2014, Różycki, Rejewski, and Zygalski were posthumously awarded the prestigious IEEE Milestone Award by the Institute of Electrical and Electronics Engineers in recognition of achievements that have changed the world. In 2014, a commemorative plaque in Polish and English, dedicated to Różycki and his two colleagues, was unveiled before the Polish Academy of Sciences Mathematics Institute in Warsaw. In 2018, a bench commemorating Różycki was unveiled in a park in the town of Wyszków, where Różycki had attended secondary school.