Nathalie Sergueiew

Nathalie "Lily" Sergueiew
Sergueiew between 1944 and 1946
Born(1912-01-24)24 January 1912
Died17 May 1950(1950-05-17) (aged 38)
NationalityRussian
CitizenshipFrench
Occupation(s)Journalist, spy
SpouseBart Collings (m. 1945)

Nathalie "Lily" Sergueiew (January 24, 1912 – May 17, 1950) was a double agent who worked for MI5 during World War II under the codename "Treasure". She played a significant role in the Double-Cross System, particularly by deceiving the Germans about the location of the D-Day landings.