Szügyi commanded the Szent László Infantry Division during its entire existence between October 1944 and May 1945. He surrendered to the British Army around Klagenfurt, but was handed over to the Hungarian authorities in March 1946. Following his capture, he was sentenced to 10 years imprisonment on 28 November 1949 as a war criminal, and released in 1957.
Fellgiebel, Walther-Peer (2000) [1986]. Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 — Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtteile [The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches] (in German). Friedberg, Germany: Podzun-Pallas. ISBN978-3-7909-0284-6.
Kovács, Attila Ótott (2006). Die ungarischen Inhaber des Ritterkreuzes des Eisernen Kreuzes. Ranis: Scherzers Militaer-Verl. ISBN978-3-938845-02-8.