Marina Litvinenko
E726851
Marina Litvinenko is a Russian-British activist and campaigner best known for seeking justice and accountability for the 2006 polonium-210 poisoning of her husband, former FSB officer Alexander Litvinenko, in London.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Marina Litvinenko canonical | 2 |
| Litvinenko | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8215252 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Marina Litvinenko Context triple: [Alexander Litvinenko, spouse, Marina Litvinenko]
-
A.
Alexander Litvinenko
Alexander Litvinenko was a former Russian FSB officer and prominent critic of Vladimir Putin who died in London in 2006 after being poisoned with radioactive polonium-210, in a case that drew worldwide attention.
-
B.
Yekaterina Nosenko
Yekaterina Nosenko was the first wife of renowned Russian composer Igor Stravinsky, with whom he had four children.
-
C.
Zhanna Nemtsova
Zhanna Nemtsova is a Russian journalist, activist, and daughter of slain opposition leader Boris Nemtsov, known for her work promoting democracy and human rights.
-
D.
Anna Politkovskaya
Anna Politkovskaya was a Russian investigative journalist and human rights activist renowned for her courageous reporting on the Chechen wars and criticism of the Putin government, for which she was ultimately assassinated.
-
E.
Politkovskaya
Politkovskaya is a Russian surname most widely associated with Anna Politkovskaya, the prominent journalist and human rights activist known for her reporting on the Chechen conflict and criticism of the Russian government.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Marina Litvinenko Target entity description: Marina Litvinenko is a Russian-British activist and campaigner best known for seeking justice and accountability for the 2006 polonium-210 poisoning of her husband, former FSB officer Alexander Litvinenko, in London.
-
A.
Alexander Litvinenko
Alexander Litvinenko was a former Russian FSB officer and prominent critic of Vladimir Putin who died in London in 2006 after being poisoned with radioactive polonium-210, in a case that drew worldwide attention.
-
B.
Yekaterina Nosenko
Yekaterina Nosenko was the first wife of renowned Russian composer Igor Stravinsky, with whom he had four children.
-
C.
Zhanna Nemtsova
Zhanna Nemtsova is a Russian journalist, activist, and daughter of slain opposition leader Boris Nemtsov, known for her work promoting democracy and human rights.
-
D.
Anna Politkovskaya
Anna Politkovskaya was a Russian investigative journalist and human rights activist renowned for her courageous reporting on the Chechen wars and criticism of the Putin government, for which she was ultimately assassinated.
-
E.
Politkovskaya
Politkovskaya is a Russian surname most widely associated with Anna Politkovskaya, the prominent journalist and human rights activist known for her reporting on the Chechen conflict and criticism of the Russian government.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
activist
ⓘ
human ⓘ |
| advocacyFocus |
investigation of Russian security services
ⓘ
sanctions and legal measures against suspects in the Litvinenko case ⓘ |
| causeAdvocated |
accountability for political assassinations
ⓘ
human rights ⓘ rule of law ⓘ |
| citizenship |
Russia
ⓘ
United Kingdom ⓘ |
| countryOfResidence | United Kingdom ⓘ |
| familyName |
Litvinenko
ⓘ
linked to:
Marina Litvinenko
|
| givenName | Marina ⓘ |
| hasEthnicBackground | Russian ⓘ |
| languageSpoken |
English
ⓘ
Russian ⓘ |
| legalAction | support for legal proceedings and inquiries in the United Kingdom regarding Alexander Litvinenko's death ⓘ |
| mediaAppearance | interviews about the Litvinenko poisoning case ⓘ |
| name | Marina Litvinenko ⓘ |
| notableFor |
advocacy regarding the 2006 polonium-210 poisoning in London
ⓘ
campaigning for justice for the poisoning of Alexander Litvinenko ⓘ |
| occupation |
activist
ⓘ
campaigner ⓘ |
| opposes |
Russian state involvement in her husband's murder
ⓘ
impunity for state-sponsored killings ⓘ |
| participatedIn | campaigns for an independent public inquiry into Alexander Litvinenko's death ⓘ |
| placeOfActivity |
London
ⓘ
linked to:
London, England
United Kingdom ⓘ |
| relatedEvent |
2006 poisoning of Alexander Litvinenko
ⓘ
linked to:
Litvinenko inquiry in the United Kingdom
|
| relatedTo | Federal Security Service of the Russian Federation (FSB) through her husband's former employment ⓘ |
| roleInEvent | widow of poisoning victim Alexander Litvinenko ⓘ |
| spouse | Alexander Litvinenko ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Marina Litvinenko Description of subject: Marina Litvinenko is a Russian-British activist and campaigner best known for seeking justice and accountability for the 2006 polonium-210 poisoning of her husband, former FSB officer Alexander Litvinenko, in London.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Marina Litvinenko